Update actions/checkout action to v2.3.4

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
actions/checkout	action	patch	v2.3.3 -> v2.3.4

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Release Notes

actions/checkout

### [`v2.3.4`](https://togithub.com/actions/checkout/releases/v2.3.4) [Compare Source](https://togithub.com/actions/checkout/compare/v2.3.3...v2.3.4) - [Add missing `await`s](https://togithub.com/actions/checkout/pull/379) - [Swap to Environment Files](https://togithub.com/actions/checkout/pull/360)

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Renovate configuration

:date: Schedule: "after 10pm every weekday,before 5am every weekday" (UTC).

:vertical_traffic_light: Automerge: Enabled.

:recycle: Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

:no_bell: 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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[renovate[bot]]

Branch automerge failure

This PR was configured for branch automerge, however this is not possible so it has been raised as a PR instead.

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[renovate[bot]]

Renovate Ignore Notification

As this PR has been closed unmerged, Renovate will now ignore this update (v2.3.4). You will still receive a PR once a newer version is released, so if you wish to permanently ignore this dependency, please add it to the ignoreDeps array of your renovate config.

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