Upgrade swagger-parser Dependency
### Description:
The root cause for issue [1] was identified as a bug of the `swagger-parser` and a new version [2] of swagger-parser has been released with the fix. But, when upgrading the swagger-parser using the orbit bundle [3] ,to the above mentioned released version, it is better to upgrade the `swagger-parser`, `swagger-parser-v2-converter` and `swagger-parser-v3` to keep all the artifacts in a consistent version. When doing this, the `swagger-core`, `swagger-models`, `jackson-annotations` dependencies also has to be upgraded for compatibility. 

This issue is created to track the dependency upgrades which is required to be done to upgrade the swagger-parser.

[1] https://github.com/wso2/product-apim/issues/12168
[2] https://github.com/swagger-api/swagger-parser/releases/tag/v2.0.29
[3] https://github.com/wso2/orbit/blob/master/swagger-parser/2.0.20.wso2v1/pom.xml
diff --git a/modules/integration/tests-integration/tests-backend/src/test/java/org/wso2/am/integration/tests/other/APIM4765ResourceOrderInSwagger.java b/modules/integration/tests-integration/tests-backend/src/test/java/org/wso2/am/integration/tests/other/APIM4765ResourceOrderInSwagger.java
index 027fc677d..3c92f2e40 100644
--- a/modules/integration/tests-integration/tests-backend/src/test/java/org/wso2/am/integration/tests/other/APIM4765ResourceOrderInSwagger.java
+++ b/modules/integration/tests-integration/tests-backend/src/test/java/org/wso2/am/integration/tests/other/APIM4765ResourceOrderInSwagger.java
@@ -89,18 +89,21 @@ public class APIM4765ResourceOrderInSwagger extends APIManagerLifecycleBaseTest
                 + "{\"x-auth-type\":\"Application \",\"x-throttling-tier\":\"10KPerMin\",\"responses\":{\"200\":{}}}}}";*/
 
         String resourceOrder = "\"paths\" : {"+ lineSeparator + "    \"/*\" : {"+ lineSeparator + "      \"get\" : {" + lineSeparator
-               + "        \"parameters\" : [ ],"+ lineSeparator + "        \"responses\" : {"+ lineSeparator + "          \"200\" : { }" + lineSeparator
-               + "        },"+ lineSeparator + "        \"security\" : [ {"+ lineSeparator + "          \"default\" : [ ]" + lineSeparator + "        } ]," + lineSeparator
-               + "        \"x-auth-type\" : \"Application \"," + lineSeparator + "        \"x-throttling-tier\" : \"10KPerMin\"" + lineSeparator
-               + "      }"+ lineSeparator + "    },"+ lineSeparator + "    \"/post\" : {"+ lineSeparator + "      \"get\" : {"+ lineSeparator
-               + "        \"parameters\" : [ ],"+ lineSeparator + "        \"responses\" : {"+ lineSeparator + "          \"200\" : { }"+ lineSeparator
-               + "        },"+ lineSeparator + "        \"security\" : [ {"+ lineSeparator + "          \"default\" : [ ]"+ lineSeparator + "        } ],"+ lineSeparator
-               + "        \"x-auth-type\" : \"Application \","+ lineSeparator + "        \"x-throttling-tier\" : \"10KPerMin\""+ lineSeparator
-               + "      }"+ lineSeparator + "    },"+ lineSeparator + "    \"/list\" : {"+ lineSeparator + "      \"get\" : {"+ lineSeparator
-               + "        \"parameters\" : [ ],"+ lineSeparator + "        \"responses\" : {"+ lineSeparator + "          \"200\" : { }"+ lineSeparator
-               + "        },"+ lineSeparator + "        \"security\" : [ {"+ lineSeparator + "          \"default\" : [ ]"+ lineSeparator + "        } ],"+ lineSeparator
-               + "        \"x-auth-type\" : \"Application \","+ lineSeparator + "        \"x-throttling-tier\" : \"10KPerMin\""+ lineSeparator
-               + "      }"+ lineSeparator + "    }"+ lineSeparator + "  }";
+                + "        \"parameters\" : [ ],"+ lineSeparator + "        \"responses\" : {"+ lineSeparator + "          \"200\" : { }" + lineSeparator
+                + "        },"+ lineSeparator + "        \"responsesObject\" : {"+ lineSeparator + "          \"200\" : { }" + lineSeparator
+                + "        },"+ lineSeparator + "        \"security\" : [ {"+ lineSeparator + "          \"default\" : [ ]" + lineSeparator + "        } ]," + lineSeparator
+                + "        \"x-auth-type\" : \"Application \"," + lineSeparator + "        \"x-throttling-tier\" : \"10KPerMin\"" + lineSeparator
+                + "      }"+ lineSeparator + "    },"+ lineSeparator + "    \"/post\" : {"+ lineSeparator + "      \"get\" : {"+ lineSeparator
+                + "        \"parameters\" : [ ],"+ lineSeparator + "        \"responses\" : {"+ lineSeparator + "          \"200\" : { }"+ lineSeparator
+                + "        },"+ lineSeparator + "        \"responsesObject\" : {"+ lineSeparator + "          \"200\" : { }" + lineSeparator
+                + "        },"+ lineSeparator + "        \"security\" : [ {"+ lineSeparator + "          \"default\" : [ ]"+ lineSeparator + "        } ],"+ lineSeparator
+                + "        \"x-auth-type\" : \"Application \","+ lineSeparator + "        \"x-throttling-tier\" : \"10KPerMin\""+ lineSeparator
+                + "      }"+ lineSeparator + "    },"+ lineSeparator + "    \"/list\" : {"+ lineSeparator + "      \"get\" : {"+ lineSeparator
+                + "        \"parameters\" : [ ],"+ lineSeparator + "        \"responses\" : {"+ lineSeparator + "          \"200\" : { }"+ lineSeparator
+                + "        },"+ lineSeparator + "        \"responsesObject\" : {"+ lineSeparator + "          \"200\" : { }" + lineSeparator
+                + "        },"+ lineSeparator + "        \"security\" : [ {"+ lineSeparator + "          \"default\" : [ ]"+ lineSeparator + "        } ],"+ lineSeparator
+                + "        \"x-auth-type\" : \"Application \","+ lineSeparator + "        \"x-throttling-tier\" : \"10KPerMin\""+ lineSeparator
+                + "      }"+ lineSeparator + "    }"+ lineSeparator + "  }";
 
 
         restAPIPublisher.updateSwagger(apiId, swagger);
diff --git a/modules/integration/tests-integration/tests-backend/src/test/resources/oas/v2/oas.json b/modules/integration/tests-integration/tests-backend/src/test/resources/oas/v2/oas.json
index 936746c31..d25d42975 100644
--- a/modules/integration/tests-integration/tests-backend/src/test/resources/oas/v2/oas.json
+++ b/modules/integration/tests-integration/tests-backend/src/test/resources/oas/v2/oas.json
@@ -20,7 +20,7 @@
           "default" : [ "SwaggerPetstore_v2" ]
         } ],
         "x-auth-type" : "Application & Application User",
-        "x-throttling-tier" : null
+        "x-throttling-tier" : "10KPerMin"
       }
     },
     "/pets/{petId}" : {
@@ -40,7 +40,7 @@
           "default" : [ ]
         } ],
         "x-auth-type" : "Application & Application User",
-        "x-throttling-tier" : null
+        "x-throttling-tier" : "10KPerMin"
       }
     },
     "/oldpets" : {
@@ -55,7 +55,7 @@
           "default" : [ "SwaggerPetstore_v2" ]
         } ],
         "x-auth-type" : "Application & Application User",
-        "x-throttling-tier" : null
+        "x-throttling-tier" : "10KPerMin"
       }
     }
   },
diff --git a/modules/integration/tests-integration/tests-backend/src/test/resources/oas/v2/oas_import.json b/modules/integration/tests-integration/tests-backend/src/test/resources/oas/v2/oas_import.json
index 012227bed..9199dc8f3 100644
--- a/modules/integration/tests-integration/tests-backend/src/test/resources/oas/v2/oas_import.json
+++ b/modules/integration/tests-integration/tests-backend/src/test/resources/oas/v2/oas_import.json
@@ -20,7 +20,7 @@
           "default" : [ "SwaggerPetstore_imp_v2" ]
         } ],
         "x-auth-type" : "Application & Application User",
-        "x-throttling-tier" : null
+        "x-throttling-tier" : "10KPerMin"
       }
     },
     "/pets/{petId}" : {
@@ -40,7 +40,7 @@
           "default" : [ ]
         } ],
         "x-auth-type" : "Application & Application User",
-        "x-throttling-tier" : null
+        "x-throttling-tier" : "10KPerMin"
       }
     },
     "/oldpets" : {
@@ -55,7 +55,7 @@
           "default" : [ "SwaggerPetstore_imp_v2" ]
         } ],
         "x-auth-type" : "Application & Application User",
-        "x-throttling-tier" : null
+        "x-throttling-tier" : "10KPerMin"
       }
     }
   },
diff --git a/modules/integration/tests-integration/tests-backend/src/test/resources/oas/v2/oas_import_publisher.json b/modules/integration/tests-integration/tests-backend/src/test/resources/oas/v2/oas_import_publisher.json
index 21edf8635..92f322b42 100644
--- a/modules/integration/tests-integration/tests-backend/src/test/resources/oas/v2/oas_import_publisher.json
+++ b/modules/integration/tests-integration/tests-backend/src/test/resources/oas/v2/oas_import_publisher.json
@@ -20,7 +20,7 @@
           "default" : [ "SwaggerPetstore_imp_v2" ]
         } ],
         "x-auth-type" : "Application & Application User",
-        "x-throttling-tier" : null,
+        "x-throttling-tier" : "10KPerMin",
         "x-wso2-application-security": {
           "security-types": ["oauth2"],
           "optional": false
@@ -44,7 +44,7 @@
           "default" : [ ]
         } ],
         "x-auth-type" : "Application & Application User",
-        "x-throttling-tier" : null,
+        "x-throttling-tier" : "10KPerMin",
         "x-wso2-application-security": {
           "security-types": ["oauth2"],
           "optional": false
@@ -63,7 +63,7 @@
           "default" : [ "SwaggerPetstore_imp_v2" ]
         } ],
         "x-auth-type" : "Application & Application User",
-        "x-throttling-tier" : null,
+        "x-throttling-tier" : "10KPerMin",
         "x-wso2-application-security": {
           "security-types": ["oauth2"],
           "optional": false
diff --git a/modules/integration/tests-integration/tests-backend/src/test/resources/oas/v2/oas_publisher.json b/modules/integration/tests-integration/tests-backend/src/test/resources/oas/v2/oas_publisher.json
index 4282cd6f7..e946a7378 100644
--- a/modules/integration/tests-integration/tests-backend/src/test/resources/oas/v2/oas_publisher.json
+++ b/modules/integration/tests-integration/tests-backend/src/test/resources/oas/v2/oas_publisher.json
@@ -20,7 +20,7 @@
           "default" : [ "SwaggerPetstore_v2" ]
         } ],
         "x-auth-type" : "Application & Application User",
-        "x-throttling-tier" : null,
+        "x-throttling-tier" : "10KPerMin",
         "x-wso2-application-security": {
           "security-types": ["oauth2"],
           "optional": false
@@ -44,7 +44,7 @@
           "default" : [ ]
         } ],
         "x-auth-type" : "Application & Application User",
-        "x-throttling-tier" : null,
+        "x-throttling-tier" : "10KPerMin",
         "x-wso2-application-security": {
           "security-types": ["oauth2"],
           "optional": false
@@ -63,7 +63,7 @@
           "default" : [ "SwaggerPetstore_v2" ]
         } ],
         "x-auth-type" : "Application & Application User",
-        "x-throttling-tier" : null,
+        "x-throttling-tier" : "10KPerMin",
         "x-wso2-application-security": {
           "security-types": ["oauth2"],
           "optional": false
diff --git a/modules/integration/tests-integration/tests-backend/src/test/resources/oas/v3/apiUpdateData.json b/modules/integration/tests-integration/tests-backend/src/test/resources/oas/v3/apiUpdateData.json
index 568b53dc4..a3c56d471 100644
--- a/modules/integration/tests-integration/tests-backend/src/test/resources/oas/v3/apiUpdateData.json
+++ b/modules/integration/tests-integration/tests-backend/src/test/resources/oas/v3/apiUpdateData.json
@@ -69,21 +69,21 @@
     "target": "/pets",
     "verb": "GET",
     "authType": "Application & Application User",
-    "throttlingPolicy": null,
+    "throttlingPolicy": "10KPerMin",
     "scopes": ["SwaggerPetstore_v3"]
   }, {
     "id": "",
     "target": "/newpets",
     "verb": "PUT",
     "authType": "Application & Application User",
-    "throttlingPolicy": null,
+    "throttlingPolicy": "10KPerMin",
     "scopes": ["SwaggerPetstore_v3"]
   }, {
     "id": "",
     "target": "/pets/{petId}",
     "verb": "GET",
     "authType": "Application & Application User",
-    "throttlingPolicy": null,
+    "throttlingPolicy": "10KPerMin",
     "scopes": []
   }],
   "threatProtectionPolicies": null
diff --git a/modules/integration/tests-integration/tests-backend/src/test/resources/oas/v3/oas.json b/modules/integration/tests-integration/tests-backend/src/test/resources/oas/v3/oas.json
index ae7c9851b..0ba286181 100644
--- a/modules/integration/tests-integration/tests-backend/src/test/resources/oas/v3/oas.json
+++ b/modules/integration/tests-integration/tests-backend/src/test/resources/oas/v3/oas.json
@@ -22,7 +22,7 @@
           "default" : [ "SwaggerPetstore_v3" ]
         } ],
         "x-auth-type" : "Application & Application User",
-        "x-throttling-tier" : null
+        "x-throttling-tier" : "10KPerMin"
       }
     },
     "/pets/{petId}" : {
@@ -46,7 +46,7 @@
           "default" : [ ]
         } ],
         "x-auth-type" : "Application & Application User",
-        "x-throttling-tier" : null
+        "x-throttling-tier" : "10KPerMin"
       }
     },
     "/oldpets" : {
@@ -60,7 +60,7 @@
           "default" : [ "SwaggerPetstore_v3" ]
         } ],
         "x-auth-type" : "Application & Application User",
-        "x-throttling-tier" : null
+        "x-throttling-tier" : "10KPerMin"
       }
     }
   },
diff --git a/modules/integration/tests-integration/tests-backend/src/test/resources/oas/v3/oas_import.json b/modules/integration/tests-integration/tests-backend/src/test/resources/oas/v3/oas_import.json
index ea8ad265d..9760cf66b 100644
--- a/modules/integration/tests-integration/tests-backend/src/test/resources/oas/v3/oas_import.json
+++ b/modules/integration/tests-integration/tests-backend/src/test/resources/oas/v3/oas_import.json
@@ -22,7 +22,7 @@
           "default" : [ "SwaggerPetstore_imp_v3" ]
         } ],
         "x-auth-type" : "Application & Application User",
-        "x-throttling-tier" : null
+        "x-throttling-tier" : "10KPerMin"
       }
     },
     "/pets/{petId}" : {
@@ -46,7 +46,7 @@
           "default" : [ ]
         } ],
         "x-auth-type" : "Application & Application User",
-        "x-throttling-tier" : null
+        "x-throttling-tier" : "10KPerMin"
       }
     },
     "/oldpets" : {
@@ -60,7 +60,7 @@
           "default" : [ "SwaggerPetstore_imp_v3" ]
         } ],
         "x-auth-type" : "Application & Application User",
-        "x-throttling-tier" : null
+        "x-throttling-tier" : "10KPerMin"
       }
     }
   },
diff --git a/modules/integration/tests-integration/tests-backend/src/test/resources/oas/v3/oas_import_publisher.json b/modules/integration/tests-integration/tests-backend/src/test/resources/oas/v3/oas_import_publisher.json
index 82e7f4d6b..f589b53e2 100644
--- a/modules/integration/tests-integration/tests-backend/src/test/resources/oas/v3/oas_import_publisher.json
+++ b/modules/integration/tests-integration/tests-backend/src/test/resources/oas/v3/oas_import_publisher.json
@@ -22,7 +22,7 @@
           "default" : [ "SwaggerPetstore_imp_v3" ]
         } ],
         "x-auth-type" : "Application & Application User",
-        "x-throttling-tier" : null,
+        "x-throttling-tier" : "10KPerMin",
         "x-wso2-application-security": {
           "security-types": ["oauth2"],
           "optional": false
@@ -50,7 +50,7 @@
           "default" : [ ]
         } ],
         "x-auth-type" : "Application & Application User",
-        "x-throttling-tier" : null,
+        "x-throttling-tier" : "10KPerMin",
         "x-wso2-application-security": {
           "security-types": ["oauth2"],
           "optional": false
@@ -68,7 +68,7 @@
           "default" : [ "SwaggerPetstore_imp_v3" ]
         } ],
         "x-auth-type" : "Application & Application User",
-        "x-throttling-tier" : null,
+        "x-throttling-tier" : "10KPerMin",
         "x-wso2-application-security": {
           "security-types": ["oauth2"],
           "optional": false
diff --git a/modules/integration/tests-integration/tests-backend/src/test/resources/oas/v3/oas_publisher.json b/modules/integration/tests-integration/tests-backend/src/test/resources/oas/v3/oas_publisher.json
index e11b14c49..b143cb666 100644
--- a/modules/integration/tests-integration/tests-backend/src/test/resources/oas/v3/oas_publisher.json
+++ b/modules/integration/tests-integration/tests-backend/src/test/resources/oas/v3/oas_publisher.json
@@ -22,7 +22,7 @@
           "default" : [ "SwaggerPetstore_v3" ]
         } ],
         "x-auth-type" : "Application & Application User",
-        "x-throttling-tier" : null,
+        "x-throttling-tier" : "10KPerMin",
         "x-wso2-application-security": {
           "security-types": ["oauth2"],
           "optional": false
@@ -50,7 +50,7 @@
           "default" : [ ]
         } ],
         "x-auth-type" : "Application & Application User",
-        "x-throttling-tier" : null,
+        "x-throttling-tier" : "10KPerMin",
         "x-wso2-application-security": {
           "security-types": ["oauth2"],
           "optional": false
@@ -68,7 +68,7 @@
           "default" : [ "SwaggerPetstore_v3" ]
         } ],
         "x-auth-type" : "Application & Application User",
-        "x-throttling-tier" : null,
+        "x-throttling-tier" : "10KPerMin",
         "x-wso2-application-security": {
           "security-types": ["oauth2"],
           "optional": false
['modules/integration/tests-integration/tests-backend/src/test/resources/oas/v2/oas.json', 'modules/integration/tests-integration/tests-backend/src/test/resources/oas/v2/oas_import.json', 'modules/integration/tests-integration/tests-backend/src/test/resources/oas/v3/oas_import_publisher.json', 'modules/integration/tests-integration/tests-backend/src/test/resources/oas/v2/oas_publisher.json', 'modules/integration/tests-integration/tests-backend/src/test/resources/oas/v3/oas_publisher.json', 'modules/integration/tests-integration/tests-backend/src/test/resources/oas/v3/oas.json', 'modules/integration/tests-integration/tests-backend/src/test/resources/oas/v3/apiUpdateData.json', 'modules/integration/tests-integration/tests-backend/src/test/resources/oas/v2/oas_import_publisher.json', 'modules/integration/tests-integration/tests-backend/src/test/resources/oas/v3/oas_import.json', 'modules/integration/tests-integration/tests-backend/src/test/java/org/wso2/am/integration/tests/other/APIM4765ResourceOrderInSwagger.java']