⬆️ Update codecov/codecov-action action to v4

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
codecov/codecov-action	action	major	v3 -> v4

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Release Notes

codecov/codecov-action (codecov/codecov-action)

v4

Compare Source

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Configuration

📅 Schedule: Branch creation - "before 4am on the first day of the month" in timezone Europe/Amsterdam, 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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• If you want to rebase/retry this PR, check this box

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 0.00%. Comparing base (0315c8a) to head (e56c9fb).
Report is 2 commits behind head on main.

Additional details and impacted files

@@          Coverage Diff          @@
##            main      #2   +/-   ##
=====================================
  Coverage   0.00%   0.00%           
=====================================
  Files          2       2           
  Lines         37      37           
  Branches      37      37           
=====================================
  Misses        37      37           

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