[ci] add tests for PHP 8.5

[Chris53897]

Problems:
The maintainer is working on this, there are open PRs and unreleased versions.

Problem 1
    - ergebnis/composer-normalize is locked to version 2.47.0 and an update of this package was not requested.
    - ergebnis/composer-normalize 2.47.0 requires php ~7.4.0 || ~8.0.0 || ~8.1.0 || ~8.2.0 || ~8.3.0 || ~8.4.0 -> your php version (8.5.0-dev) does not satisfy that requirement.
  Problem 2
    - ergebnis/json-normalizer is locked to version 4.9.0 and an update of this package was not requested.
    - ergebnis/json-normalizer 4.9.0 requires php ~7.4.0 || ~8.0.0 || ~8.1.0 || ~8.2.0 || ~8.3.0 || ~8.4.0 -> your php version (8.5.0-dev) does not satisfy that requirement.
  Problem 3
    - ergebnis/json-pointer is locked to version 3.6.0 and an update of this package was not requested.
    - ergebnis/json-pointer 3.6.0 requires php ~7.4.0 || ~8.0.0 || ~8.1.0 || ~8.2.0 || ~8.3.0 || ~8.4.0 -> your php version (8.5.0-dev) does not satisfy that requirement.
  Problem 4
    - ergebnis/json-printer is locked to version 3.7.0 and an update of this package was not requested.
    - ergebnis/json-printer 3.7.0 requires php ~7.4.0 || ~8.0.0 || ~8.1.0 || ~8.2.0 || ~8.3.0 || ~8.4.0 -> your php version (8.5.0-dev) does not satisfy that requirement.
  Problem 5
    - ergebnis/json-schema-validator is locked to version 4.4.0 and an update of this package was not requested.
    - ergebnis/json-schema-validator 4.4.0 requires php ~7.4.0 || ~8.0.0 || ~8.1.0 || ~8.2.0 || ~8.3.0 || ~8.4.0 -> your php version (8.5.0-dev) does not satisfy that requirement.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 95.12%. Comparing base (60b96aa) to head (f21163c).
⚠️ Report is 2 commits behind head on 4.x.

Additional details and impacted files

@@            Coverage Diff            @@
##                4.x     #630   +/-   ##
=========================================
  Coverage     95.12%   95.12%           
  Complexity      575      575           
=========================================
  Files            70       70           
  Lines          1640     1640           
=========================================
  Hits           1560     1560           
  Misses           80       80           

[ramsey]

Thank you for contributing! 🎉