chore: Bump actions/checkout (#42952)

Summary:
GitHub is [planning to upgrade to Node 20](https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/). Versions prior to actions/checkout v3 use an outdated version of node, so we will upgrade to actions/checkout v4, where [Node 20 is the default](https://github.com/actions/checkout/releases/tag/v4.0.0).

## Changelog:

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chore: Bump actions/checkout

Pick one each for the category and type tags:

[INTERNAL] [FIXED] - chore: Bump actions/checkout

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[INTERNAL] [FIXED] - chore: Bump actions/checkout

Pull Request resolved: https://github.com/facebook/react-native/pull/42952

Reviewed By: cipolleschi

Differential Revision: D53655117

Pulled By: cortinico

fbshipit-source-id: 7c05e6ac2cb71c9d20c0b28b183cada6856f0a2d