chore(deps): update actions/checkout action to v4.2.1

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
actions/checkout	action	patch	v4.2.0 -> v4.2.1

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Release Notes

actions/checkout (actions/checkout)

v4.2.1

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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🚦 Automerge: Enabled.

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 86.75%. Comparing base (990c889) to head (15f0d43).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #488   +/-   ##
=======================================
  Coverage   86.75%   86.75%           
=======================================
  Files          11       11           
  Lines        1729     1729           
=======================================
  Hits         1500     1500           
  Misses        155      155           
  Partials       74       74           

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