Update duckdb index files

.gitattributes

@@ -61,3 +61,4 @@ action_sequence/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 character_order/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 counterfactual_inference/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 egocentric_navigation/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+episodic_reasoning/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

episodic_reasoning/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:20e63a4e6fb3366efa370eadc52aa496ba3cd315a47edde766ea0423b6b2a928
+size 1060864