Adding security_context flag to charms

security_context is set to false while we don't have new
container images.

Change-Id: I99cf8c1ab7446811887445d596f416f7e79574e7
Signed-off-by: sousaedu <eduardo.sousa@canonical.com>
diff --git a/installers/charm/kafka/tests/test_charm.py b/installers/charm/kafka/tests/test_charm.py
index ec0efbd..409dc0b 100644
--- a/installers/charm/kafka/tests/test_charm.py
+++ b/installers/charm/kafka/tests/test_charm.py
@@ -56,9 +56,7 @@
         self.assertIsInstance(self.harness.charm.unit.status, ActiveStatus)
 
     @patch("charm.KafkaCharm.num_units", new_callable=PropertyMock)
-    def test_with_relations_kafka(
-        self, mock_num_units
-    ) -> NoReturn:
+    def test_with_relations_kafka(self, mock_num_units) -> NoReturn:
         "Test with relations (kafka)"
         mock_num_units.return_value = 1