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
 lighteval--mutual/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
+lighteval--mutual/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

lighteval--mutual/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:67744100024ce0e1edfedfe7ce57e32e948e4221fb888120ccec7098654d39c4
+size 9973760