SIENTIAPDE-1107

fix: update image tag and environment variables for MongoDB integration

orchestrator/activities/mongo_db.py

@@ -1,14 +1,9 @@
-from ast import Not
-from pydoc import doc
-import trace
-from grpc import server
 import pymongo
 from temporalio import workflow, activity
 
 with workflow.unsafe.imports_passed_through():
     from typing import Any
     import traceback
-    import json
     from logging import Logger
     from sientia_do.notifications.handlers import NotificationHandler
     from sientia_do.notifications.models import NotificationLevel