Fix(unbound): add missing docker login

Author: till

.github/workflows/goreleaser.yml

@@ -13,6 +13,11 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v4
+    - uses: docker/login-action@v3
+      with:
+        registry: ghcr.io
+        username: ${{ github.actor }}
+        password: ${{ secrets.GITHUB_TOKEN }}
     - id: meta
       uses: docker/metadata-action@v5
       with: