chore(deps): update actions/checkout action to v4

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
actions/checkout	action	major	v3 -> v4

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Release Notes

actions/checkout (actions/checkout)

v4

Compare Source

• Support fetching without the --progress option
• Update to node20

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Configuration

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[NoxHarmonium]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 40.99%. Comparing base (8d577c9) to head (9e59c56).
Report is 1 commits behind head on main.

❗ Current head 9e59c56 differs from pull request most recent head cdea255. Consider uploading reports for the commit cdea255 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #32      +/-   ##
==========================================
- Coverage   50.48%   40.99%   -9.50%     
==========================================
  Files          41       33       -8     
  Lines        4603     3632     -971     
==========================================
- Hits         2324     1489     -835     
+ Misses       2279     2143     -136     

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