Update duckdb index files

.gitattributes

@@ -1,3 +1,4 @@
 evaluate--imdb-ci/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 evaluate--imdb-ci/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
+default/test/index.duckdb filter=lfs diff=lfs merge=lfs -text

default/test/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:704a91e60aa11e7d0b44a6dff73b2504cc39cf5d5d342e8936222bb14c50e168
+size 1060864