chore: symfony 8 dependencies

[jorgsowa]

Allows Symfony v8 dependencies + PHPUnit v12.

[andrew-demb]

CI failed :(

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 94.81%. Comparing base (53f9d49) to head (3cda61a).
⚠️ Report is 125 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master     #770      +/-   ##
============================================
- Coverage     95.72%   94.81%   -0.92%     
- Complexity     1773     1846      +73     
============================================
  Files           154      175      +21     
  Lines          4586     4878     +292     
============================================
+ Hits           4390     4625     +235     
- Misses          196      253      +57     

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[jorgsowa]

Done, CI passes.

[oojacoboo]

Thanks @jorgsowa!