Drop Python 3.8 due to the EOL

[alessio-locatelli]

See the commits.

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I think it is a time to publish a new patch release. Maybe you can publish it or I can create a new Pull Request.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.20%. Comparing base (fb00280) to head (8d28ac7).
Report is 20 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #303      +/-   ##
==========================================
+ Coverage   96.17%   96.20%   +0.03%     
==========================================
  Files          10       10              
  Lines        1072     1081       +9     
  Branches      188      188              
==========================================
+ Hits         1031     1040       +9     
  Misses         30       30              
  Partials       11       11              

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[JWCook]

Looks good to me, thank you! I'll make a release. I think it should be a minor version bump, though, since we're dropping a python version.