Pick out fastparquet xfails for green CI

Author: lithomas1

pandas/tests/io/test_parquet.py

@@ -973,6 +973,9 @@ def test_timestamp_nanoseconds(self, pa):
         df = pd.DataFrame({"a": pd.date_range("2017-01-01", freq="1ns", periods=10)})
         check_round_trip(df, pa, write_kwargs={"version": ver})
 
+    @pytest.mark.xfail(
+        reason="fastparquet bug, see https://github.com/dask/fastparquet/issues/929"
+    )
     def test_timezone_aware_index(self, request, pa, timezone_aware_date_list):
         if timezone_aware_date_list.tzinfo != datetime.timezone.utc:
             request.applymarker(