chore(deps): update actions/checkout action to v4

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
actions/checkout	action	major	v2 -> v4

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Release Notes

actions/checkout (actions/checkout)

### [`v4`](https://togithub.com/actions/checkout/blob/HEAD/CHANGELOG.md#v400) [Compare Source](https://togithub.com/actions/checkout/compare/v3...v4) - [Support fetching without the --progress option](https://togithub.com/actions/checkout/pull/1067) - [Update to node20](https://togithub.com/actions/checkout/pull/1436) ### [`v3`](https://togithub.com/actions/checkout/blob/HEAD/CHANGELOG.md#v360) [Compare Source](https://togithub.com/actions/checkout/compare/v2...v3) - [Fix: Mark test scripts with Bash'isms to be run via Bash](https://togithub.com/actions/checkout/pull/1377) - [Add option to fetch tags even if fetch-depth > 0](https://togithub.com/actions/checkout/pull/579)

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:tada: This PR is included in version 1.8.1 :tada:

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