Update duckdb index files

.gitattributes

@@ -54,3 +54,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.jpeg filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
 Melanit--testset/example/index.duckdb filter=lfs diff=lfs merge=lfs -text
+default/example/index.duckdb filter=lfs diff=lfs merge=lfs -text

default/example/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:2b5dcee2da1844f1bad426e737bc7b0a5e80684ea3fb4aaddb012b21c0be8fc5
+size 4468736