chore(deps): update auto merge & approve disable rules (major) - autoclosed

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
peaceiris/actions-gh-pages	action	major	v3 -> v4
peaceiris/actions-mdbook	action	major	v1 -> v2

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Release Notes

peaceiris/actions-gh-pages (peaceiris/actions-gh-pages)

### [`v4`](https://togithub.com/peaceiris/actions-gh-pages/compare/v3...v4) [Compare Source](https://togithub.com/peaceiris/actions-gh-pages/compare/v3...v4)

peaceiris/actions-mdbook (peaceiris/actions-mdbook)

### [`v2`](https://togithub.com/peaceiris/actions-mdbook/compare/v1...v2) [Compare Source](https://togithub.com/peaceiris/actions-mdbook/compare/v1...v2)

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Configuration

📅 Schedule: Branch creation - "every weekend" 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.

👻 Immortal: This PR will be recreated if closed unmerged. Get config help if that's undesired.

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

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