chore(deps): update actions/upload-artifact action to v6

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
actions/upload-artifact	action	major	v5 → v6

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Release Notes

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

v6

Compare Source

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Configuration

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 85.12%. Comparing base (fdd5491) to head (029e37c).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #294   +/-   ##
=======================================
  Coverage   85.12%   85.12%           
=======================================
  Files          12       12           
  Lines         558      558           
  Branches       78       78           
=======================================
  Hits          475      475           
  Misses         70       70           
  Partials       13       13           

Flag	Coverage Δ
unittests	85.12% <ø> (ø)

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