Update dependency: Requests to v2.25.1

[wp99cp]

After updating the dependencies, I found out that the http requests package (requests) introduced some breaking changes in version 24.0.0. At least I think the problem is in that version.

The error traceback I got:

Traceback (most recent call last):
  ...
  File "postcard_creator/token.py", line 123, in fetch_token
    access_token = self._get_access_token_swissid(session, username, password)
  File "postcard_creator/token.py", line 236, in _get_access_token_swissid
    goto_param = re.search(r'goto=(.*?)$', step1_goto_url.url).group(1)
AttributeError: 'NoneType' object has no attribute 'group'

I think the problem has something to do with the redirecting during the sign-in process, whose handling has been changed in v2.24.0. A quick change in the sign-in process fixed the issue. With the new swiss-id sign-in it works fine for now. But I have no way to test out the legacy sign-in method. Can somebody do this step?

On top of that, I let run my script for a couple of days, to catch some corner cases...

[abertschi]

But I have no way to test out the legacy sign-in method. Can somebody do this step?

Works just fine with legacy wrappers. 👍

[wp99cp]

I have now sent several postcards. It seems to work without any issues. Ready to merge.

[abertschi]

merging .... :)