Update actions/checkout action to v7 (#172)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [actions/checkout](https://github.com/actions/checkout) | action | major | `v6` → `v7` |

---

### Release Notes

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

### [`v7.0.0`](https://github.com/actions/checkout/blob/HEAD/CHANGELOG.md#v700)

[Compare Source](https://github.com/actions/checkout/compare/v7.0.0...v7.0.0)

- Block checking out fork PR for pull\_request\_target and workflow\_run by [@&#8203;aiqiaoy](https://github.com/aiqiaoy) in [#&#8203;2454](https://github.com/actions/checkout/pull/2454)
- Bump actions/publish-immutable-action from 0.0.3 to 0.0.4 in the minor-actions-dependencies group across 1 directory by [@&#8203;dependabot](https://github.com/dependabot)\[bot] in [#&#8203;2458](https://github.com/actions/checkout/pull/2458)
- Bump flatted from 3.3.1 to 3.4.2 by [@&#8203;dependabot](https://github.com/dependabot)\[bot] in [#&#8203;2460](https://github.com/actions/checkout/pull/2460)
- Bump js-yaml from 4.1.0 to 4.2.0 by [@&#8203;dependabot](https://github.com/dependabot)\[bot] in [#&#8203;2461](https://github.com/actions/checkout/pull/2461)
- Bump [@&#8203;actions/core](https://github.com/actions/core) and [@&#8203;actions/tool-cache](https://github.com/actions/tool-cache) and Remove uuid by [@&#8203;dependabot](https://github.com/dependabot)\[bot] in [#&#8203;2459](https://github.com/actions/checkout/pull/2459)
- upgrade module to esm and update dependencies by [@&#8203;aiqiaoy](https://github.com/aiqiaoy) in [#&#8203;2463](https://github.com/actions/checkout/pull/2463)
- Bump the minor-npm-dependencies group across 1 directory with 3 updates by [@&#8203;dependabot](https://github.com/dependabot)\[bot] in [#&#8203;2462](https://github.com/actions/checkout/pull/2462)

### [`v7`](https://github.com/actions/checkout/blob/HEAD/CHANGELOG.md#v700)

[Compare Source](https://github.com/actions/checkout/compare/v6.0.3...v7.0.0)

- Block checking out fork PR for pull\_request\_target and workflow\_run by [@&#8203;aiqiaoy](https://github.com/aiqiaoy) in [#&#8203;2454](https://github.com/actions/checkout/pull/2454)
- Bump actions/publish-immutable-action from 0.0.3 to 0.0.4 in the minor-actions-dependencies group across 1 directory by [@&#8203;dependabot](https://github.com/dependabot)\[bot] in [#&#8203;2458](https://github.com/actions/checkout/pull/2458)
- Bump flatted from 3.3.1 to 3.4.2 by [@&#8203;dependabot](https://github.com/dependabot)\[bot] in [#&#8203;2460](https://github.com/actions/checkout/pull/2460)
- Bump js-yaml from 4.1.0 to 4.2.0 by [@&#8203;dependabot](https://github.com/dependabot)\[bot] in [#&#8203;2461](https://github.com/actions/checkout/pull/2461)
- Bump [@&#8203;actions/core](https://github.com/actions/core) and [@&#8203;actions/tool-cache](https://github.com/actions/tool-cache) and Remove uuid by [@&#8203;dependabot](https://github.com/dependabot)\[bot] in [#&#8203;2459](https://github.com/actions/checkout/pull/2459)
- upgrade module to esm and update dependencies by [@&#8203;aiqiaoy](https://github.com/aiqiaoy) in [#&#8203;2463](https://github.com/actions/checkout/pull/2463)
- Bump the minor-npm-dependencies group across 1 directory with 3 updates by [@&#8203;dependabot](https://github.com/dependabot)\[bot] in [#&#8203;2462](https://github.com/actions/checkout/pull/2462)

</details>

---

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---

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---

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Reviewed-on: #172
Reviewed-by: stb <stb@noreply.git.hamburg.ccc.de>

.forgejo/workflows/deploy.yaml

@@ -29,7 +29,7 @@ jobs:
           # For uploading.
           apk add rsync openssh
 
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
         with:
           fetch-depth: 0 # pull full history for page lastmod by git commit date