Update actions/checkout digest to eef6144 (#18)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [actions/checkout](https://github.com/actions/checkout) | action | digest | `a5ac7e5` -> `eef6144` |

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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 becomes conflicted, 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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 - [ ] <!-- 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://github.com/renovatebot/renovate).
<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNy4zNDAuMyIsInVwZGF0ZWRJblZlciI6IjM3LjM0MC4zIiwidGFyZ2V0QnJhbmNoIjoibWFpbiIsImxhYmVscyI6W119-->

Reviewed-on: #18
Co-authored-by: Johnny5 <bot@snaile.de>
Co-committed-by: Johnny5 <bot@snaile.de>

.forgejo/workflows/void-packages.yml

@@ -10,7 +10,7 @@ jobs:
     name: Update xbps-src template
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29 # v4
+      - uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4
         with:
           fetch-depth: 0
           token: ${{ secrets.FORGEJO_PUSH_TOKEN }}