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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[codecov]

Codecov Report

All modified lines are covered by tests ✅

Comparison is base (dbd1d9f) 97.97% compared to head (6e5f76d) 78.78%.
Report is 1 commits behind head on master.

❗ Current head 6e5f76d differs from pull request most recent head 1981e34. Consider uploading reports for the commit 1981e34 to get more accurate results

Additional details and impacted files

@@             Coverage Diff             @@
##           master     #282       +/-   ##
===========================================
- Coverage   97.97%   78.78%   -19.20%     
===========================================
  Files           1        1               
  Lines          99       99               
  Branches       19       11        -8     
===========================================
- Hits           97       78       -19     
- Misses          2       21       +19     

see 1 file with indirect coverage changes

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