Update duckdb index files

.gitattributes

@@ -55,3 +55,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 Mel-Iza0--squad3/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 Mel-Iza0--squad3/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/train/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:b7b0fb34e71c2431c7ec8570c15b5e06497071e5d2dc066fc0ecaaaf8eac7318
+size 1847296