Update duckdb index files

.gitattributes

@@ -53,3 +53,4 @@ 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
 train.txt filter=lfs diff=lfs merge=lfs -text
+semeru--Code-Code-CloneDetection-BigCloneBench/test/index.duckdb filter=lfs diff=lfs merge=lfs -text

semeru--Code-Code-CloneDetection-BigCloneBench/test/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:82e9e40ed23dedf62ea879c6fbe287b1041258d12ad388710c92303c76d70127
+size 6828032