fix pre-commit, installing locally so it doesnt pop error in CI :)

Author: brentru

tests/test_datetime.py

@@ -546,7 +546,6 @@ def test_timestamp_naive(self):
             else:
                 self.assertEqual(self.theclass.fromtimestamp(s), t)
 
-
     def test_timestamp_aware(self):
         t = self.theclass(1970, 1, 1, tzinfo=timezone.utc)
         self.assertEqual(t.timestamp(), 0.0)