Allow Symfony 7.0 and bump dependencies

[yann-eugone]

• drop symfony 5.4
• allow symfony 7.0
• change testing matrix for these version range, along with php versions
• fix compatibility with symfony 7.0

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (9c5a049) 99.70% compared to head (0cfdfeb) 99.70%.

Additional details and impacted files

@@             Coverage Diff              @@
##                0.x     #111      +/-   ##
============================================
- Coverage     99.70%   99.70%   -0.01%     
  Complexity      921      921              
============================================
  Files           150      150              
  Lines          2671     2670       -1     
============================================
- Hits           2663     2662       -1     
  Misses            8        8              

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