Update parquet files

default/train/index.duckdb

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:9159639e4dfcd6e509108be2a41cc7cc02dc5e86237332c2be21353b18430a4c
-size 3420160

{default → unbalanced_train_part01}/train/0000.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:9ed600c939e3742c58f93fb032e2556219a79515a2ddd2e0bf390b04b01fd1fa
-size 1854784
+oid sha256:53193cfcf025dc1732b232cd6e2cf42dd80491efaef5ae5df75fd6926bbcb009
+size 937379