Update actions/checkout action to v4

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
actions/checkout	action	major	v3 -> v4

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Release Notes

actions/checkout (actions/checkout)

v4

Compare Source

• Check out other refs/* by commit if provided, fall back to ref by @​orhantoy in https://github.com/actions/checkout/pull/1924

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Configuration

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[what-the-diff]

PR Summary

• Update of actions/checkout in codeql.yml
  The version of actions/checkout used in our workflow has been upgraded from v3 to v4. This essentially helps to keep our system up-to-date with the latest workflow configurations, which may contain improvements in security, performance, and potentially new features.