Update parquet files

nbtpj--6k-sample/parquet-train.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:71322439b28ed43a5b2c5d54d22c565a452b107924093db21d38df2fedb091df
-size 5321022
+oid sha256:d4f729276e3e040b2bae0f3bc506cbe29c371b5d77fd7640ecca07b6fc9412ab
+size 5321023