chore: Use actions/upload-artifact@v4 in workflows

[avinashbot]

Description

actions/upload-artifact@v3 literally doesn't work anymore :)

Removed the duplicate artifact stuff cause it's a nice-to-have and it needs a little bit of investigation before merging.

Related links, issue #, if available: n/a

How has this been tested?

Review checklist

The following items are to be evaluated by the author(s) and the reviewer(s).

Correctness

• Changes include appropriate documentation updates.
• Changes are backward-compatible if not indicated, see CONTRIBUTING.md.
• Changes do not include unsupported browser features, see CONTRIBUTING.md.
• Changes were manually tested for accessibility, see accessibility guidelines.

Testing

• Changes are covered with new/existing unit tests?
• Changes are covered with new/existing integration tests?

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.20%. Comparing base (1055d7b) to head (2e0d85d).
Report is 4 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff             @@
##              main      #62      +/-   ##
===========================================
- Coverage   100.00%   99.20%   -0.80%     
===========================================
  Files           27       28       +1     
  Lines          384      251     -133     
  Branches        30       30              
===========================================
- Hits           384      249     -135     
- Misses           0        1       +1     
- Partials         0        1       +1     

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