Update duckdb index files

.gitattributes

@@ -61,3 +61,4 @@ multiple_choice_rating_sentiment_no_neutral_task/train/index.duckdb filter=lfs d
 multiple_choice_rating_sentiment_task/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 multiple_choice_sentiment_task/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 multiple_choice_facts_truefalse_balanced_task/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+multiple_choice_grounded_statement_soqal_task/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

multiple_choice_grounded_statement_soqal_task/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cf4a6321ce5fb729c3f844d9f58f6c0b0b3b46691b3adb6ba736850d9c09ca14
+size 1060864