Update actions/checkout action to v4.2.2

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
actions/checkout	action	patch	v4.2.1 -> v4.2.2

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Release Notes

actions/checkout (actions/checkout)

### [`v4.2.2`](https://redirect.github.com/actions/checkout/blob/HEAD/CHANGELOG.md#v422) [Compare Source](https://redirect.github.com/actions/checkout/compare/v4.2.1...v4.2.2) - `url-helper.ts` now leverages well-known environment variables by [@​jww3](https://redirect.github.com/jww3) in [https://github.com/actions/checkout/pull/1941](https://redirect.github.com/actions/checkout/pull/1941) - Expand unit test coverage for `isGhes` by [@​jww3](https://redirect.github.com/jww3) in [https://github.com/actions/checkout/pull/1946](https://redirect.github.com/actions/checkout/pull/1946)

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Configuration

📅 Schedule: Branch creation - "before 4am on Monday" in timezone Asia/Tokyo, Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, 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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