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
+livedoor-news-corpus/test/index.duckdb filter=lfs diff=lfs merge=lfs -text

livedoor-news-corpus/test/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:588bfd6b5dec9c6c2ca712ada7d42da4773fe212babe917cb29853cf0bd7f637
+size 3682304