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-commenter]

Codecov Report

All modified lines are covered by tests ✅

Comparison is base (b1b09ae) 98.16% compared to head (903db42) 98.16%.

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Additional details and impacted files

@@           Coverage Diff           @@
##             main     #356   +/-   ##
=======================================
  Coverage   98.16%   98.16%           
=======================================
  Files          33       33           
  Lines       14025    14025           
  Branches      673      673           
=======================================
  Hits        13768    13768           
  Misses        252      252           
  Partials        5        5           

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