Update Dockerfile for latest PHP 8.4

[bobstrecansky]

chore: Made the update from #1624 strictly for PHP 8.4

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 69.33%. Comparing base (78bd695) to head (f10a6ce).
Report is 2 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #1625      +/-   ##
============================================
- Coverage     69.40%   69.33%   -0.08%     
  Complexity     2812     2812              
============================================
  Files           414      414              
  Lines          8594     8592       -2     
============================================
- Hits           5965     5957       -8     
- Misses         2629     2635       +6     

Flag	Coverage Δ
8.1	69.12% <ø> (ø)
8.2	69.27% <ø> (-0.06%)	⬇️
8.3	69.28% <ø> (-0.04%)	⬇️
8.4	?

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see 4 files with indirect coverage changes

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