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

• 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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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 87.69%. Comparing base (159f1ae) to head (6f1cf29).
Report is 2 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1147      +/-   ##
==========================================
- Coverage   87.94%   87.69%   -0.26%     
==========================================
  Files         139      124      -15     
  Lines        2812     2299     -513     
  Branches      834      642     -192     
==========================================
- Hits         2473     2016     -457     
+ Misses        324      274      -50     
+ Partials       15        9       -6     

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