chore(deps): update actions/checkout action to v6

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
actions/checkout	action	major	v5 -> v6

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Release Notes

actions/checkout (actions/checkout)

v6

Compare Source

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Configuration

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[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 80.43%. Comparing base (5a6a5ef) to head (122d401).

Additional details and impacted files

@@           Coverage Diff           @@
##            0.2.x      #70   +/-   ##
=======================================
  Coverage   80.43%   80.43%           
=======================================
  Files           6        6           
  Lines          46       46           
=======================================
  Hits           37       37           
  Misses          9        9           

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