output_greynoise: twisted.internet.defer.CancelledError

[micheloosterhof]

Sometimes gives this exception:

2022-04-22T00:08:03.298910Z [twisted.internet.defer#critical] Unhandled error in Deferred:
2022-04-22T00:08:03.299118Z [twisted.internet.defer#critical] 
        Traceback (most recent call last):
        --- <exception caught here> ---
          File "/home/cowrie/cowrie/src/cowrie/output/greynoise.py", line 68, in scanip
            response = yield treq.get(url=gn_url, headers=headers, timeout=10)
        twisted.web._newclient.ResponseNeverReceived: [<twisted.python.failure.Failure twisted.internet.defer.CancelledError: >]