Use juju_.has_secrets to be correctly handle action result return code in data integrator test

Author: shayancanonical

tests/integration/test_data_integrator.py

@@ -34,7 +34,10 @@ async def get_data_integrator_credentials(ops_test: OpsTest) -> typing.Dict:
     data_integrator_unit = ops_test.model.applications[DATA_INTEGRATOR_APP_NAME].units[0]
     action = await data_integrator_unit.run_action(action_name="get-credentials")
     result = await action.wait()
-    assert result.results["return-code"] == 0
+    if juju_.has_secrets:
+        assert result.results["Code"] == 0
+    else:
+        assert result.results["return-code"] == 0
     assert result.results["ok"] == "True"
     return result.results["mysql"]