Update duckdb index files

.gitattributes

@@ -1,3 +1,4 @@
 olpa--jbo-corpus/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 olpa--jbo-corpus/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 olpa--jbo-corpus/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 sha256:44e304cb7725e6582ad8276e2cdb9739c378404e36859bff07870532d67ec5d8
+size 1585152