chore(deps): Update actions/checkout action to v4 (#191)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [actions/checkout](https://togithub.com/actions/checkout) | action | major | `v3` -> `v4` |

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### Release Notes

<details>
<summary>actions/checkout (actions/checkout)</summary>

### [`v4`](https://togithub.com/actions/checkout/blob/HEAD/CHANGELOG.md#v410)

[Compare Source](https://togithub.com/actions/checkout/compare/v3...v4)

-   [Add support for partial checkout filters](https://togithub.com/actions/checkout/pull/1396)

</details>

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### Configuration

📅 **Schedule**: Branch creation - "before 4am on the first day of the month" (UTC), 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.

---

 - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box

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This PR has been generated by [Renovate Bot](https://togithub.com/renovatebot/renovate).
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Author: cq-bot

.github/workflows/ci.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - uses: actions/setup-java@v3
         with:
           distribution: "temurin"

.github/workflows/publish.yml

@@ -9,7 +9,7 @@ jobs:
      runs-on: ubuntu-latest
      steps:
        - name: Checkout
-         uses: actions/checkout@v3
+         uses: actions/checkout@v4
        - uses: actions/setup-java@v3
          with:
            distribution: 'temurin'