Update duckdb index files

.gitattributes

@@ -53,3 +53,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.jpeg filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
 metaeval--counterfactually-augmented-snli/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
+metaeval--counterfactually-augmented-snli/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

metaeval--counterfactually-augmented-snli/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:538878704a095f4422118bfb2f9baf3d152ae2002a9e2a59bce3582af0627315
+size 1585152