Add PHP 8.5 support

[vjik]

Q	A
Is bugfix?	❌
New feature?	❌
Breaks BC?	❌

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.50%. Comparing base (9874811) to head (deb252b).
⚠️ Report is 6 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master     #287      +/-   ##
============================================
- Coverage     99.51%   99.50%   -0.02%     
  Complexity      305      305              
============================================
  Files            19       19              
  Lines           827      801      -26     
============================================
- Hits            823      797      -26     
  Misses            4        4              

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