update consumer.py

declare queue if doesn't exist

src/consumer.py

@@ -89,7 +89,7 @@ if __name__ == '__main__':
     logger = configure_file_logger('consumer', logging_format='%(asctime)s - %(levelname)s - %(message)s')
 
     try:
-        channel.queue_declare(queue=conf_param['queue'], passive=True)
+        channel.queue_declare(queue=conf_param['queue'], durable=True, arguments={'x-max-priority': 10})
     except ValueError as exc:
         logger.log(logging.ERROR, f'Queue {conf_param["queue"]} is not declared.')
         raise exc