Update duckdb index files

pretrain-unlabeled/test/index.duckdb

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:ba513b21972371a027cfeba5975d57f50bc2249a54443b8c3001dea64211e229
-size 4993024
+oid sha256:404bba8ae708b0eb979fa97be5c4dd321ee6e43b4cb3f54bf00c0f0bfe15940f
+size 4730880