Update github/codeql-action action to v4

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
github/codeql-action	action	major	v3 -> v4

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Release Notes

github/codeql-action (github/codeql-action)

v4

Compare Source

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Configuration

📅 Schedule: Branch creation - "after 7am and before 4pm on monday" in timezone Europe/London, 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.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 38.51%. Comparing base (c02c9da) to head (2495ac5).
⚠️ Report is 9 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #708   +/-   ##
=======================================
  Coverage   38.51%   38.51%           
=======================================
  Files          99       99           
  Lines       11663    11663           
  Branches     1542     1542           
=======================================
  Hits         4492     4492           
  Misses       6973     6973           
  Partials      198      198           

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