Drop PHP 8.4 support

[Baptouuuu]

Since the latest version of innmind/url requires 8.5 essentially all packages for innmind/foundation can move to 8.5 as well.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 84.40%. Comparing base (084906d) to head (8a465c2).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##               main      #26   +/-   ##
=========================================
  Coverage     84.40%   84.40%           
  Complexity      223      223           
=========================================
  Files            21       21           
  Lines          1218     1218           
=========================================
  Hits           1028     1028           
  Misses          190      190           

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