Update parquet files

ratno--datasets_ub/json-train.parquet → default/train/0000.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:1ac7c251489b2ea4e780ec34cc5a2be054b099df9351c8e14cb5ed912efb5f03
-size 1865694
+oid sha256:662c5add6097c27c70e6b8591dcbf02216b768be118aba8caacc0cbecf756740
+size 1865682

ratno--datasets_ub/train/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:2c091dfde356e3b6af0418689dab8a96c62326a5541b0678a6932c6c0131384f
-size 9187328