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
 9wimu9--SinQuAD/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 9wimu9--SinQuAD/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
+default/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text

default/validation/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d259f2a34226713ac4fd4b7360125dc65f5faf50505428f39b9d02351f862ec9
+size 5517312