Update actions/checkout action to v4

[renovate[bot]]

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

• Check out other refs/* by commit if provided, fall back to ref by @​orhantoy in https://github.com/actions/checkout/pull/1924

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Configuration

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

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[codecov[bot]]

Codecov Report

All modified lines are covered by tests :white_check_mark:

Comparison is base (ce99aa6) 72.00% compared to head (f770333) 71.52%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #124      +/-   ##
==========================================
- Coverage   72.00%   71.52%   -0.48%     
==========================================
  Files          18       18              
  Lines         850      850              
==========================================
- Hits          612      608       -4     
- Misses        186      188       +2     
- Partials       52       54       +2     

see 1 file with indirect coverage changes

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