chore: add php 8.5 to tests

[rancoud]

Description

• add php 8.5 to test workflow
• avoid double run on github action
• add --display-all-issues on phpunit command
• remove lint action on php 8.5
• remove PHP_CS_FIXER_IGNORE_ENV=True for lint
• replace in test \chr(99999999) with "\xFF"

Replace in escAttr

$ord = \ord($chr);

with

if (\strlen($chr) === 1) {
    $ord = \ord($chr);
} else {
    $ord = \mb_ord($chr, 'UTF-8');
}

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (85be6a3) to head (a72f360).

Additional details and impacted files

@@             Coverage Diff             @@
##              master      #313   +/-   ##
===========================================
  Coverage     100.00%   100.00%           
- Complexity        31        32    +1     
===========================================
  Files              1         1           
  Lines            105       107    +2     
===========================================
+ Hits             105       107    +2     

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