Fix SSL Error of scipy

[PaulJonasJost]

Building the docs continously threw an ssl error see for example this action

Warning, treated as error:
failed to reach any of the inventories with the following issues:
intersphinx inventory 'https://docs.scipy.org/doc/scipy/objects.inv' not fetchable due to <class 'requests.exceptions.SSLError'>: HTTPSConnectionPool(host='docs.scipy.org', port=443): Max retries exceeded with url: /doc/scipy/objects.inv (Caused by SSLError(SSLCertVerificationError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: certificate has expired (_ssl.c:1006)')))

I guess this will be only a temporary bug. We could also set tls_verify = False which would deactivate any verification which in my opinion is more then suboptimal...

[dweindl]

Let's just wait for half a day scipy/docs.scipy.org#80

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (d55c522) 84.30% compared to head (d96dfea) 53.37%.

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Additional details and impacted files

@@             Coverage Diff              @@
##           develop    #1175       +/-   ##
============================================
- Coverage    84.30%   53.37%   -30.94%     
============================================
  Files          148      148               
  Lines        11693    11693               
============================================
- Hits          9858     6241     -3617     
- Misses        1835     5452     +3617     

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