Update CI to run with PHP 8.4

[norkunas]

Pull Request

Related issue

Fixes #<issue_number>

What does this PR do?

• ...

PR checklist

Please check if your PR fulfills the following requirements:

• Does this PR fix an existing issue, or have you listed the changes applied in the PR description (and why they are needed)?
• Have you read the contributing guidelines?
• Have you made sure that the title is accurate and descriptive of the changes?

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88.69%. Comparing base (8f1bacf) to head (e6c2e75).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##               main     #364   +/-   ##
=========================================
  Coverage     88.69%   88.69%           
  Complexity        1        1           
=========================================
  Files            20       20           
  Lines           911      911           
=========================================
  Hits            808      808           
  Misses          103      103           

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