Update parquet files

SetFit--20_newsgroups/json-test.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:14c4cb15a839bada9f9cf48f1768acbe2be6e1b177dc3e0c11b2b4f67599c42c
-size 5473122
+oid sha256:f1849063057a12ba525d63f44dcd7ee8d8ccc92141cb4d61eb7739f7c08ef9d8
+size 5470463

SetFit--20_newsgroups/json-train.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:ed91a6aaeaeb7e348e4bfa3383a847510d0aa8446e40bda60e61015733dc677d
-size 8903913
+oid sha256:55f47f4401ebf22113914b57a413b1ed6b963781424ff266939b0978b018697f
+size 8902361