Update duckdb index files

.gitattributes

@@ -3,3 +3,4 @@ without-filtering/jsnli-train.parquet filter=lfs diff=lfs merge=lfs -text
 with-filtering/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 with-filtering/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 without-filtering/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
+without-filtering/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

without-filtering/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:37996ce034beb104c82a2a7b6f3c85bf0858179864fdcb3929f427e11c86cce2
+size 44052480