Update duckdb index files

.gitattributes

@@ -52,3 +52,4 @@ 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
+ttss--rdf-summarization-d/test/index.duckdb filter=lfs diff=lfs merge=lfs -text

ttss--rdf-summarization-d/test/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:c5c7f91b3d52b5b9f97ac4a7851c2e9015564a2e72e8bf1804353150d6a66ebc
+size 12070912