docs: document release process

[alexgarel]

• add helper script

[stephanegigandet]

Very good idea to have this documentation

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 49.22%. Comparing base (765d796) to head (2526f56).
Report is 12 commits behind head on main.

✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #11210      +/-   ##
==========================================
+ Coverage   49.18%   49.22%   +0.04%     
==========================================
  Files          78       78              
  Lines       22389    22405      +16     
  Branches     5371     5374       +3     
==========================================
+ Hits        11011    11028      +17     
  Misses      10020    10020              
+ Partials     1358     1357       -1     

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[alexgarel]

@stephanegigandet applied proposed changes, and I also set the PERL5LIB path in setenv to make it easier !

[stephanegigandet]

Thanks a lot!

[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