chore(deps): pin actions/setup-go action to 4b73464 (#30)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [actions/setup-go](https://github.com/actions/setup-go) | action | pinDigest |  → `4b73464` |

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### Configuration

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Reviewed-on: #30
Reviewed-by: t.behrendt <t.behrendt@noreply.localhost>
Co-authored-by: Renovate Bot <renovate@t00n.de>
Co-committed-by: Renovate Bot <renovate@t00n.de>

.gitea/workflows/ci.yaml

@@ -12,7 +12,7 @@ jobs:
       - linux_amd64
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-      - uses: actions/setup-go@v6
+      - uses: actions/setup-go@4b73464bb391d4059bd26b0524d20df3927bd417 # v6
         with:
           go-version-file: go.mod
       - run: make test