Allow Sphinx v5

[EpicWink]

Allow and explicitly test against Sphinx v5

Fix #78

[codecov]

Codecov Report

Merging #79 (71bf369) into master (2839945) will increase coverage by 0.64%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master      #79      +/-   ##
==========================================
+ Coverage   84.19%   84.83%   +0.64%     
==========================================
  Files           1        1              
  Lines         310      310              
==========================================
+ Hits          261      263       +2     
+ Misses         49       47       -2     

Impacted Files	Coverage Δ
autodocsumm/__init__.py	84.83% <0.00%> (+0.64%)	⬆️

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[Chilipp]

Ah sorry, forgot about this issue @EpicWink thanks for contributing!

[jenshnielsen]

@Chilipp Thanks for an awesome package IMHO it makes navigating the autogenerated docs so much better.
Any chance we can see a new release with sphinx 5 support soon. I have been working on a patch for sphinx.ext.autosummary in sphinx-doc/sphinx#10691 which fixes documentation of inherited attributes, This resolves the one problem that I have been having with autodocsumm but the branch targets sphinx 5.x

[Chilipp]

hey @jenshnielsen! yes, sure. sorry