Call channel close before returning queue query (#954)

Author: sambles

Diff for: src/server/oasisapi/queues/utils.py

@@ -14,13 +14,15 @@ def _get_queue_consumers(queue_name):
     with celery_app.pool.acquire(block=True) as conn:
         chan = conn.channel()
         name, message_count, consumers = chan.queue_declare(queue=queue_name, passive=True)
+        chan.close()
         return consumers
 
 
 def _get_queue_message_count(queue_name):
     with celery_app.pool.acquire(block=True) as conn:
         chan = conn.channel()
         name, message_count, consumers = chan.queue_declare(queue=queue_name, passive=True)
+        chan.close()
         return message_count