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 100.00%. Comparing base (21dda80) to head (ba714d9).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff             @@
##                main       #22   +/-   ##
===========================================
  Coverage     100.00%   100.00%           
  Complexity       369       369           
===========================================
  Files             58        58           
  Lines           1544      1544           
===========================================
  Hits            1544      1544           

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