chore(deps): update actions/checkout action to v4 (#18)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [actions/checkout](https://gitea.ocram85.com/actions/checkout) | action | major | `v3` -> `v4` |

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### Release Notes

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

### [`v4`](https://gitea.ocram85.com/actions/checkout/blob/HEAD/CHANGELOG.md#v417)

[Compare Source](https://gitea.ocram85.com/actions/checkout/compare/v3...v4)

-   Bump the minor-npm-dependencies group across 1 directory with 4 updates by [@&#8203;dependabot](https://github.com/dependabot) in https://github.com/actions/checkout/pull/1739
-   Bump actions/checkout from 3 to 4 by [@&#8203;dependabot](https://github.com/dependabot) in https://github.com/actions/checkout/pull/1697
-   Check out other refs/\* by commit by [@&#8203;orhantoy](https://github.com/orhantoy) in https://github.com/actions/checkout/pull/1774
-   Pin actions/checkout's own workflows to a known, good, stable version. by [@&#8203;jww3](https://github.com/jww3) in https://github.com/actions/checkout/pull/1776

</details>

---

### Configuration

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---

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---

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Co-authored-by: OCram85 <marco.blessing@googlemail.com>
Reviewed-on: #18
Reviewed-by: OCram85 <marco.blessing@googlemail.com>
Co-authored-by: renovate-bot <renovate@ocram85.com>
Co-committed-by: renovate-bot <renovate@ocram85.com>

.gitea/workflows/release.yaml

@@ -9,7 +9,7 @@ jobs:
   release:
     runs-on: ubuntu-latest
     steps:
-      - uses: https://gitea.ocram85.com/actions/checkout@v3
+      - uses: https://gitea.ocram85.com/actions/checkout@v4
         with:
           fetch-depth: 0
       - name: setup go