[NE03B-27] 'AuditLogAsyncClient.close' was never awaited (#4501)

Author: korbajan

mgmtworker/cloudify_system_workflows/snapshots/audit_listener.py

@@ -101,7 +101,7 @@ async def _stream_logs(self):
                         since = audit_log.get('created_at')
             except BaseException:
                 pass
-        self._client.auditlog.close()
+        await self._client.auditlog.close()
 
     def _ref_in_snapshot(self, audit_log: dict) -> bool:
         ref_identifier = audit_log.get('ref_identifier', {})