Add 404_STABLE branch support (link to master)

[stronk7]

Not much to say, part of the release process (1 week before release).

To be merged as part of the packaging steps.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 63.90%. Comparing base (826dc65) to head (95b7531).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #119   +/-   ##
=======================================
  Coverage   63.90%   63.90%           
=======================================
  Files          38       38           
  Lines        1402     1402           
=======================================
  Hits          896      896           
  Misses        506      506           

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[junpataleta]

Thanks, @stronk7 !