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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[changeset-bot]

⚠️ No Changeset found

Latest commit: 3b390ee

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 46.51%. Comparing base (d9a1c4d) to head (3b390ee).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #532   +/-   ##
=======================================
  Coverage   46.51%   46.51%           
=======================================
  Files          69       69           
  Lines        1206     1206           
  Branches       79       79           
=======================================
  Hits          561      561           
  Misses        635      635           
  Partials       10       10           

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