chore(deps): update actions/checkout action to v6.0.3 (#58)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [actions/checkout](https://github.com/actions/checkout) | action | patch | `v6.0.2` → `v6.0.3` |

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> ⚠️ **Warning**
>
> Some dependencies could not be looked up. Check the Dependency Dashboard for more information.

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### Release Notes

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

### [`v6.0.3`](https://github.com/actions/checkout/blob/HEAD/CHANGELOG.md#v603)

[Compare Source](https://github.com/actions/checkout/compare/v6.0.2...v6.0.3)

- Fix checkout init for SHA-256 repositories by [@&#8203;yaananth](https://github.com/yaananth) in [#&#8203;2439](https://github.com/actions/checkout/pull/2439)
- fix: expand merge commit SHA regex and add SHA-256 test cases by [@&#8203;yaananth](https://github.com/yaananth) in [#&#8203;2414](https://github.com/actions/checkout/pull/2414)

</details>

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### Configuration

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🚦 **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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This PR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate).
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Reviewed-on: #58
Reviewed-by: t.behrendt <2+t.behrendt@noreply.localhost>
Co-authored-by: Renovate Bot <renovate@t00n.de>
Co-committed-by: Renovate Bot <renovate@t00n.de>

.gitea/workflows/cd.yaml

@@ -10,7 +10,7 @@ jobs:
     name: Release
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           fetch-depth: 0
       - name: Increment tag

.gitea/workflows/ci.yaml

@@ -13,7 +13,7 @@ jobs:
       - ubuntu-latest
       - linux_${{ matrix.arch }}
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
       - name: Setup Trivy
         uses: ./setup-trivy
       - name: Run Trivy
@@ -24,7 +24,7 @@ jobs:
     runs-on:
       - ubuntu-latest
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
       - uses: ./setup-trivy
       - name: Setup DB
         id: setup-db
@@ -37,7 +37,7 @@ jobs:
     runs-on:
       - ubuntu-latest
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
       - id: giff
         uses: ./get-images-from-files
         with:

.gitea/workflows/prerelease.yaml

@@ -8,7 +8,7 @@ jobs:
     name: Prerelease
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           fetch-depth: 0
       - name: Increment tag

get-images-from-files/test.Dockerfile

@@ -10,4 +10,4 @@ FROM example.com/library/base@sha256:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
 ## Short repo:tag (ignored by design; only registry refs are extracted)
 FROM nginx:3.19
 ## With digest only but no registry (ignored)
-FROM nginx@sha256:800e7c98538c6bf725f5177e841aa720ae0ed1c378bbea368b6330bfe18a36b3
+FROM nginx@sha256:1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef