Update tasks.py to use a variable for rabbitmq agents location, instead of hardcoded path

tasks.py

@@ -7,7 +7,7 @@ import signal
 from celery import Celery
 from flask_socketio import SocketIO
 
-sys.path.append('/cm/shared/rabbitmq_agents/')
+sys.path.append(vars.rabbitmq_agents_loc)
 import rc_util
 
 broker_url = vars.broker_url