Update duckdb index files

.gitattributes

@@ -56,3 +56,4 @@ Rosenberg--webnlg/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 Rosenberg--webnlg/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 default/validation/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 sha256:2f2039339818d0ae2933ebdda0bdf19ee0708c1fa00e303706e6231a310801be
+size 1323008