MAINT: Patch lint error with pytest.warns

The lint correctly fails on this line.

Author: gfyoung

pandas/tests/series/test_timeseries.py

@@ -937,7 +937,7 @@ def test_from_M8_structured(self):
         assert isinstance(s[0], Timestamp)
         assert s[0] == dates[0][0]
 
-        with pytest.warns(FutureWarning):
+        with tm.assert_produces_warning(FutureWarning, check_stacklevel=False):
             s = Series.from_array(arr['Date'], Index([0]))
             assert s[0] == dates[0][0]