Update actions/checkout action to v4.2.0 (release/4.0.x)

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
actions/checkout	action	minor	v4.1.7 -> v4.2.0

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Release Notes

actions/checkout (actions/checkout)

### [`v4.2.0`](https://redirect.github.com/actions/checkout/blob/HEAD/CHANGELOG.md#v420) [Compare Source](https://redirect.github.com/actions/checkout/compare/v4.1.7...v4.2.0) - Add Ref and Commit outputs by [@​lucacome](https://redirect.github.com/lucacome) in [https://github.com/actions/checkout/pull/1180](https://redirect.github.com/actions/checkout/pull/1180) - Dependency updates by [@​dependabot-](https://redirect.github.com/dependabot-) [https://github.com/actions/checkout/pull/1777](https://redirect.github.com/actions/checkout/pull/1777), [https://github.com/actions/checkout/pull/1872](https://redirect.github.com/actions/checkout/pull/1872)

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Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Enabled.

♻ Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

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• [ ] If you want to rebase/retry this PR, check this box

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