Update duckdb index files

.gitattributes

@@ -53,3 +53,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.jpg 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

Melanit--testset/example/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:adcc513bdf9feb170e71c8930669a3a009d55e5f14956e4c661c07659ec3edf3
+size 15216640