scripts/release: sync remaining changes from LiberTEM

[sk1p]

As I'm updating the release script in LiberTEM, with this change I also reduce the size of the diff between the two. I think it might make sense to soon extract some of the CI and release stuff into its own repo, but until then I'll sync like this.

Contributor Checklist:

• I have added myself to the creators.json file
• I have added a changelog entry for my contribution
• I have added/updated documentation for all user-facing changes
• I have added/updated test cases

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 86.83%. Comparing base (8aaab1b) to head (b2f1720).
Report is 17 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master      #97      +/-   ##
==========================================
+ Coverage   86.81%   86.83%   +0.02%     
==========================================
  Files          14       14              
  Lines        1191     1193       +2     
  Branches      171      152      -19     
==========================================
+ Hits         1034     1036       +2     
  Misses        105      105              
  Partials       52       52              

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[uellue]

@sk1p can I merge this or did things change at the origin of this copy since then?

[sk1p]

Two additional changes should to be applied on top:

• scripts/release: use packaging instead of pkg_resources LiberTEM#1637
• Make zenodo upload verbose LiberTEM#1644