SIENTIAPDE-1148

Update sonar-project.properties to exclude worker.py from coverage, enhance error handling in worker.py, and add new tests for error scenarios in test_redis.py and test_mongo.py.

scouter/worker/worker.py

@@ -102,7 +102,7 @@ async def main():
     try:
         await asyncio.gather(*handlers)
 
-    except BaseException as e:
+    except BaseException as e:  # NOSONAR
         logger.error("An unhandled exception occurred: %s", e, exc_info=True)
     finally:
         if notification_handler: