Update duckdb index files

.gitattributes

@@ -55,3 +55,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 arithmetic_1dc/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 arithmetic_2da/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 arithmetic_2dm/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
+arithmetic_2ds/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text

arithmetic_2ds/validation/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7c763f48c4b102be3845f26db54b898b00a7a42910e99b0a8ca10de4c78f922e
+size 1323008