chore(deps): update github action digests (major)

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
DavidAnson/markdownlint-cli2-action	action	major	v16.0.0 -> v22.0.0
actions/checkout	action	major	v4.3.1 -> v6.0.1

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Release Notes

DavidAnson/markdownlint-cli2-action (DavidAnson/markdownlint-cli2-action)

v22.0.0: Update markdownlint version (markdownlint-cli2 v0.20.0, markdownlint v0.40.0).

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v21.0.0: Update markdownlint version (markdownlint-cli2 v0.19.0, markdownlint v0.39.0).

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v20.0.0: Update markdownlint version (markdownlint-cli2 v0.18.1, markdownlint v0.38.0).

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v19.1.0: Update markdownlint version (markdownlint-cli2 v0.17.2, markdownlint v0.37.4).

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v19.0.0: Update markdownlint version (markdownlint-cli2 v0.17.0, markdownlint v0.37.0).

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v18.0.0: Update markdownlint version (markdownlint-cli2 v0.15.0, markdownlint v0.36.1).

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v17.0.0: Update markdownlint version (markdownlint-cli2 v0.14.0, markdownlint v0.35.0).

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actions/checkout (actions/checkout)

v6.0.1

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v6.0.0

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v5.0.1

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What's Changed

• Port v6 cleanup to v5 by @​ericsciple in #​2301

Full Changelog: actions/checkout@v5...v5.0.1

v5.0.0

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What's Changed

• Update actions checkout to use node 24 by @​salmanmkc in #​2226
• Prepare v5.0.0 release by @​salmanmkc in #​2238

⚠️ Minimum Compatible Runner Version

v2.327.1
Release Notes

Make sure your runner is updated to this version or newer to use this release.

Full Changelog: actions/checkout@v4...v5.0.0

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Configuration

📅 Schedule: Branch creation - Between 12:00 AM and 03:59 AM ( * 0-3 * * * ) in timezone Asia/Tokyo, Automerge - At any time (no schedule defined).

🚦 Automerge: Enabled.

♻ 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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The merge-base changed after approval.