Update GitHub Artifact Actions to v4 (major)

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
actions/download-artifact	action	major	v3 -> v4
actions/upload-artifact	action	major	v3 -> v4

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Release Notes

actions/download-artifact (actions/download-artifact)

v4

Compare Source

actions/upload-artifact (actions/upload-artifact)

v4

Compare Source

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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 these updates again.

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

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This PR has been generated by Mend Renovate. View repository job log here.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 95.79%. Comparing base (c1b294c) to head (fac53c9).

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #70   +/-   ##
=======================================
  Coverage   95.79%   95.79%           
=======================================
  Files           3        3           
  Lines         333      333           
=======================================
  Hits          319      319           
  Misses         14       14           

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