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
actions/checkout	action	major	v5.0.1 -> v6.0.1

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Warning

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Release Notes

actions/checkout (actions/checkout)

v6

Compare Source

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Configuration

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.80%. Comparing base (9fe8289) to head (8fdf25d).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #607   +/-   ##
=======================================
  Coverage   89.80%   89.80%           
=======================================
  Files           7        7           
  Lines         451      451           
=======================================
  Hits          405      405           
  Misses         29       29           
  Partials       17       17           

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