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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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (86760fc) 96.13% compared to head (c5855f7) 96.13%.

Additional details and impacted files

@@           Coverage Diff           @@
##           master      #60   +/-   ##
=======================================
  Coverage   96.13%   96.13%           
=======================================
  Files           5        5           
  Lines         181      181           
=======================================
  Hits          174      174           
  Misses          7        7           

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