Update php Docker tag to v8.4

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
php	final	minor	8.3 -> 8.4

---

Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• [ ] If you want to rebase/retry this PR, check this box

---

Config source: https://github.com/Slamdunk/.github/blob/main/renovate-config.json

[codecov[bot]]

Codecov Report

:white_check_mark: All modified and coverable lines are covered by tests. :white_check_mark: Project coverage is 37.45%. Comparing base (42aeb9c) to head (990ab82).

Additional details and impacted files

@@            Coverage Diff            @@
##             master      #81   +/-   ##
=========================================
  Coverage     37.45%   37.45%           
  Complexity      101      101           
=========================================
  Files            23       23           
  Lines           267      267           
=========================================
  Hits            100      100           
  Misses          167      167           

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.

:rocket: New features to boost your workflow:

• :snowflake: Test Analytics: Detect flaky tests, report on failures, and find test suite problems.