Update actions/checkout action to v4

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
actions/checkout	action	major	v3.6.0 -> v4.1.1
actions/checkout	action	major	v3 -> v4

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Release Notes

actions/checkout (actions/checkout)

v4.1.1

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What's Changed

• Update CODEOWNERS to Launch team by @​joshmgross in https://github.com/actions/checkout/pull/1510
• Correct link to GitHub Docs by @​peterbe in https://github.com/actions/checkout/pull/1511
• Link to release page from what's new section by @​cory-miller in https://github.com/actions/checkout/pull/1514

New Contributors

• @​joshmgross made their first contribution in https://github.com/actions/checkout/pull/1510
• @​peterbe made their first contribution in https://github.com/actions/checkout/pull/1511

Full Changelog: actions/checkout@v4...v4.1.1

v4.1.0

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• Add support for partial checkout filters

v4.0.0

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• Support fetching without the --progress option
• Update to node20

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