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
 rootacess--math-qa-classification/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
+rootacess--math-qa-classification/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

rootacess--math-qa-classification/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:dbe384e49e9908458853d5c8b7a382387f6e48549ef8cb61ddc2531ab4bf8ee4
+size 8925184