chore: add stable5.2 to the npm audit fix action and transifex integration

[st3iny]

The old branch stable5.1 can be removed once the final release is out. It will be be fully superseded by stable5.2.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 23.02%. Comparing base (1fa3559) to head (19272ba).
Report is 9 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##               main    #6792   +/-   ##
=========================================
  Coverage     23.02%   23.02%           
  Complexity      476      476           
=========================================
  Files           252      252           
  Lines         12210    12210           
  Branches       2338     2337    -1     
=========================================
  Hits           2811     2811           
  Misses         9060     9060           
  Partials        339      339           

Flag	Coverage Δ
javascript	14.62% <ø> (ø)
php	59.33% <ø> (ø)

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