Update actions/checkout action to v3 - autoclosed

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
actions/checkout	action	major	v2 -> v3

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Release Notes

actions/checkout (actions/checkout)

### [`v3`](https://togithub.com/actions/checkout/blob/HEAD/CHANGELOG.md#v353) [Compare Source](https://togithub.com/actions/checkout/compare/v2...v3) - [Fix: Checkout fail in self-hosted runners when faulty submodule are checked-in](https://togithub.com/actions/checkout/pull/1196) - [Fix typos found by codespell](https://togithub.com/actions/checkout/pull/1287) - [Add support for sparse checkouts](https://togithub.com/actions/checkout/pull/1369)

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Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), 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.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

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

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[yegor256]

@rultor please, try to merge

[rultor]

@rultor please, try to merge

@renovate[bot] @yegor256 The pull request is closed already, so I can't merge it

[rultor]

@rultor please, try to merge

@yegor256 I'm sorry, I don't understand you :( Check this page and try again please