chore(deps): update actions/checkout digest to df4cb1c (#57)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [actions/checkout](https://github.com/actions/checkout) ([changelog](https://github.com/actions/checkout/compare/de0fac2e4500dabe0009e67214ff5f5447ce83dd..df4cb1c069e1874edd31b4311f1884172cec0e10)) | action | digest | `de0fac2` → `df4cb1c` |

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Co-authored-by: Timo Behrendt <t.behrendt@t00n.de>
Reviewed-on: #57
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/ci.yaml

@@ -7,7 +7,7 @@ jobs:
   test-setup-trivy:
     strategy:
       matrix:
-        arch: [ amd64, arm64 ]
+        arch: [amd64, arm64]
     name: Test Setup Trivy ${{ matrix.arch }}
     runs-on:
       - ubuntu-latest
@@ -88,7 +88,7 @@ jobs:
     runs-on:
       - ubuntu-latest
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
       - name: Merge SARIF Files
         uses: ./merge-sarif-files
         with: