Update duckdb index files

.gitattributes

@@ -54,3 +54,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
 skrishna--CSQA_preprocessed/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 skrishna--CSQA_preprocessed/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+skrishna--CSQA_preprocessed/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text

skrishna--CSQA_preprocessed/validation/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:54793c5947f100e26c2cd8c4e4c438aead7a09940d975c7d24f247f129a0bbc3
+size 1585152