Add sorting of release notes

[pjonsson]

Put in the example from
https://docs.github.com/en/repositories/releasing-projects-on-github/automatically-generated-release-notes#example-configurations but with the headings used
for our releases.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 83.19%. Comparing base (0553b53) to head (5336fb6).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #427   +/-   ##
=======================================
  Coverage   83.19%   83.19%           
=======================================
  Files          39       39           
  Lines        2571     2571           
=======================================
  Hits         2139     2139           
  Misses        432      432           

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