SIENTIAPDE-1325

Refactor initialization of Activities, Gates, and MongoDB classes for improved readability by using multi-line argument formatting. Update related tests to match the new initialization style.

scouter/activities/activities.py

@@ -83,7 +83,12 @@ class Activities(Postgres, Redis, Gates, MongoDB):
         )
 
         # Initialize Gates
-        Gates.__init__(self, logger=logger, notification_handler=notification_handler, metrics_controller=metrics_controller)
+        Gates.__init__(
+            self,
+            logger=logger,
+            notification_handler=notification_handler,
+            metrics_controller=metrics_controller,
+        )
 
         # Initialize MongoDB
         MongoDB.__init__(