Update duckdb index files

readerbench--squad_qgen/train/index.duckdb

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:38e03eb97e55e56a7fe62e43e7685f9f7867395bfe24b8a3051664c9ab8ba355
-size 63713280
+oid sha256:8f10b8923474cda8264a44428c1962b0d5f9a9331f30e2bc7c83c63f923c7126
+size 63975424