chore/casserver-ci-and-test-maintenance

[ioigoume]

fix CI pipeline workflows, resolve PHP 8.5 test deprecations, and upgrade PHPUnit schema

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 69.12%. Comparing base (2dc73e0) to head (e0567c6).
⚠️ Report is 9 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master      #81      +/-   ##
============================================
+ Coverage     68.42%   69.12%   +0.69%     
- Complexity      374      385      +11     
============================================
  Files            25       25              
  Lines          1235     1250      +15     
============================================
+ Hits            845      864      +19     
+ Misses          390      386       -4     

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