Fix agent_service message ack

pqai_agent/agent_service.py

@@ -152,6 +152,7 @@ class AgentService:
             if message:
                 try:
                     self.process_single_message(message)
+                    self.receive_queue.ack(message)
                 except NoRetryException as e:
                     logger.error("Error processing message and skip retry: {}".format(e))
                     self.receive_queue.ack(message)