Issue: Python 3.9-slim-bullseye to 3.13-slim-bullseye gives SMS/GCM errors during testing

[duttonw]

see: #147

Failing scenarios:
  tests/features/gcm.feature:4  Receive GCM notifications
  tests/features/mail.feature:4  Receive email
  tests/features/mail.feature:11  Send Receive email with non ANSII subject
  tests/features/mail.feature:23  Receive email with attachment
  tests/features/mail.feature:29  Click link in an email
  tests/features/mail.feature:36  Parse email and set persona variable
  tests/features/mail.feature:43  International friendly
  tests/features/mail.feature:53  No messages received
  tests/features/sms.feature:4  Receive SMSs
  tests/features/sms.feature:9  Receive SMS with body
  tests/features/sms.feature:17  Persona variables from sms

File "/usr/local/lib/python3.13/smtplib.py", line 312, in _get_socket
return socket.create_connection((host, port), timeout,
~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^
self.source_address)
^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.13/socket.py", line 864, in create_connection
raise exceptions[0]
File "/usr/local/lib/python3.13/socket.py", line 849, in create_connection
sock.connect(sa)
~~~~~~~~~~~~^^^^
ConnectionRefusedError: [Errno 111] Connection refused

and

Traceback (most recent call last):
File "/usr/local/lib/python3.13/site-packages/behave/model.py", line 1329, in run
match.run(runner.context)
~~~~~~~~~^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.13/site-packages/behave/matchers.py", line 98, in run
self.func(context, *args, **kwargs)
~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/app/src/behaving/personas/persona.py", line 52, in replace
self.func.call(*args, **kwargs)
~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
File "/app/src/behaving/sms/steps.py", line 55, in send_sms
urlopen(req)
~~~~~~~^^^^^
File "/usr/local/lib/python3.13/urllib/request.py", line 189, in urlopen
return opener.open(url, data, timeout)
~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.13/urllib/request.py", line 489, in open
response = self._open(req, data)
File "/usr/local/lib/python3.13/urllib/request.py", line 506, in _open
result = self._call_chain(self.handle_open, protocol, protocol +
'_open', req)
File "/usr/local/lib/python3.13/urllib/request.py", line 466, in _call_chain
result = func(*args)
File "/usr/local/lib/python3.13/urllib/request.py", line 1348, in http_open
return self.do_open(http.client.HTTPConnection, req)
~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.13/urllib/request.py", line 1322, in do_open
raise URLError(err)
urllib.error.URLError: <urlopen error [Errno 111] Connection refused>