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 98.67%. Comparing base (cb7d46b) to head (8c4e9b7).
⚠️ Report is 2 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff            @@
##             master      #61   +/-   ##
=========================================
  Coverage     98.67%   98.67%           
  Complexity      141      141           
=========================================
  Files             3        3           
  Lines           378      378           
=========================================
  Hits            373      373           
  Misses            5        5           

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