Update duckdb index files

.gitattributes

@@ -56,3 +56,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 Mihir1108--Aspire/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 Mihir1108--Aspire/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/test/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 sha256:55130654790b3e4818f7a9986cfc4591a3dd19882ce9bee0db289a05d622a3b9
+size 20721664