chore(deps): 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

📅 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 is behind base branch, 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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This PR was generated by Mend Renovate. View the repository job log.

[github-actions]

[actionlint] _{reported by reviewdog 🐶}
the runner of "actions-rs/toolchain@v1" action is too old to run on GitHub Actions. update the action's version to fix this issue [action]

[github-actions]

[actionlint] _{reported by reviewdog 🐶}
the runner of "actions-rs/toolchain@v1" action is too old to run on GitHub Actions. update the action's version to fix this issue [action]

[github-actions]

[actionlint] _{reported by reviewdog 🐶}
input "working-directory" is not defined in action "Swatinem/rust-cache@v2". available inputs are "cache-all-crates", "cache-directories", "cache-on-failure", "cache-provider", "cache-targets", "env-vars", "key", "prefix-key", "save-if", "shared-key", "workspaces" [action]

seichi-game-data-server/.github/workflows/ci.yaml

Line 30 in 04ef8c8

working-directory: server

[github-actions]

[actionlint] _{reported by reviewdog 🐶}
the runner of "actions-rs/cargo@v1" action is too old to run on GitHub Actions. update the action's version to fix this issue [action]

seichi-game-data-server/.github/workflows/ci.yaml

Line 39 in 04ef8c8

uses: actions-rs/cargo@v1

[github-actions]

[actionlint] _{reported by reviewdog 🐶}
the runner of "actions-rs/cargo@v1" action is too old to run on GitHub Actions. update the action's version to fix this issue [action]

seichi-game-data-server/.github/workflows/ci.yaml

Line 45 in 04ef8c8

uses: actions-rs/cargo@v1

[github-actions]

[actionlint] _{reported by reviewdog 🐶}
the runner of "actions-rs/cargo@v1" action is too old to run on GitHub Actions. update the action's version to fix this issue [action]

seichi-game-data-server/.github/workflows/ci.yaml

Line 51 in 04ef8c8

uses: actions-rs/cargo@v1