chore(deps): update actions/checkout action to v4

This PR contains the following updates:

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

Release Notes

actions/checkout (actions/checkout)

### [`v4`](https://togithub.com/actions/checkout/blob/HEAD/CHANGELOG.md#v400) [Compare Source](https://togithub.com/actions/checkout/compare/v3...v4) - [Support fetching without the --progress option](https://togithub.com/actions/checkout/pull/1067) - [Update to node20](https://togithub.com/actions/checkout/pull/1436)

Configuration

📅 Schedule: Branch creation - "before 4am on the first day of the month" in timezone America/Denver, 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.

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

This PR has been generated by Mend Renovate. View repository job log here.

therockstorm / privacy-protect

chore(deps): update actions/checkout action to v4 #27

Release Notes

Configuration