Update pull request template and CI automation

[bmarty]

• CLA instead of sign-of
• min API 24
• Localazy instead of Weblate.

[github-actions]

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 83.05%. Comparing base (29eca97) to head (dcc74c8).
Report is 150 commits behind head on develop.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #4037   +/-   ##
========================================
  Coverage    83.05%   83.05%           
========================================
  Files         1856     1856           
  Lines        48064    48064           
  Branches      5646     5646           
========================================
  Hits         39920    39920           
  Misses        6145     6145           
  Partials      1999     1999           

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