job-status-consumer: better catch exceptions

[tiborsimko]

Seen when testing many pMSSM workflows:

$ kubectl logs deployment/reana-workflow-controller job-status-consumer
...
2021-11-22 11:18:15,651 | root | MainThread | INFO |  [x] Received workflow_uuid: cbeca699-418c-4084-911f-23ba1a62c6b0 status: RunStatus.running
2021-11-22 11:18:15,691 | root | MainThread | INFO |  [x] Received workflow_uuid: b808972f-9071-4826-b9a6-b7c4353e55d8 status: RunStatus.running
2021-11-22 11:18:15,725 | root | MainThread | INFO |  [x] Received workflow_uuid: 4a5fd15c-8c1b-4a8d-8cfc-f3593c74f68a status: RunStatus.running
2021-11-22 11:18:15,760 | root | MainThread | INFO |  [x] Received workflow_uuid: dcf8d5bf-0d90-4a24-8891-a5e874c39700 status: RunStatus.running
2021-11-22 11:18:15,798 | root | MainThread | INFO |  [x] Received workflow_uuid: 017eb1f1-f732-471a-9637-afff257a5ba1 status: RunStatus.failed
2021-11-22 11:18:17,313 | root | MainThread | INFO |  [x] Received workflow_uuid: ad980370-ca20-4d5b-a5d9-eff33b9c7eaf status: RunStatus.running
2021-11-22 11:18:17,357 | root | MainThread | INFO |  [x] Received workflow_uuid: d6c956dd-5812-4173-a822-a6d5fffcd4f8 status: RunStatus.finished
2021-11-22 11:18:21,448 | root | MainThread | ERROR | Unexpected error while processing workflow: [Errno 104] Connection reset by peer
Traceback (most recent call last):
  File "/usr/local/lib/python3.8/site-packages/reana_workflow_controller/consumer.py", line 82, in on_message
    message.ack()
  File "/usr/local/lib/python3.8/site-packages/kombu/message.py", line 126, in ack
    self.channel.basic_ack(self.delivery_tag, multiple=multiple)
  File "/usr/local/lib/python3.8/site-packages/amqp/channel.py", line 1393, in basic_ack
    return self.send_method(
  File "/usr/local/lib/python3.8/site-packages/amqp/abstract_channel.py", line 59, in send_method
    conn.frame_writer(1, self.channel_id, sig, args, content)
  File "/usr/local/lib/python3.8/site-packages/amqp/method_framing.py", line 189, in write_frame
    write(view[:offset])
  File "/usr/local/lib/python3.8/site-packages/amqp/transport.py", line 305, in write
    self._write(s)
ConnectionResetError: [Errno 104] Connection reset by peer

Can this exception be caught and acted upon?