chore(deps): update actions/checkout action to v2.4.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
actions/checkout	action	minor	v2.3.4 -> v2.4.0

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Release Notes

actions/checkout

v2.4.0

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• Convert SSH URLs like org-<ORG_ID>@&#8203;github.com: to https://github.com/ - pr

v2.3.5

Compare Source

Update dependencies

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Configuration

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