[pre-commit.ci] auto fixes from pre-commit.com hooks

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tests/amazon/aws/sensors/test_s3_sensors.py

@@ -300,6 +300,7 @@ def test_init(self):
         assert isinstance(task, S3KeysUnchangedSensor)
         assert task.deferrable is True
 
+
 class TestS3KeySizeSensorAsync(unittest.TestCase):
     def test_deprecation_warnings_generated(self):
         with pytest.warns(expected_warning=DeprecationWarning):