Update php Docker tag to v8.4

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
php	final	minor	8.3 -> 8.4

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 97.89%. Comparing base (cf72648) to head (4cda88a).
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff            @@
##             master      #67   +/-   ##
=========================================
  Coverage     97.89%   97.89%           
  Complexity      149      149           
=========================================
  Files            15       15           
  Lines           332      332           
=========================================
  Hits            325      325           
  Misses            7        7           

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