ci: ensure docker cli is available in build job

.gitea/workflows/deploy.yml

@@ -171,10 +171,16 @@ jobs:
     needs: prepare
     if: ${{ needs.prepare.outputs.target != 'skip' }}
     runs-on: docker
+    container:
+      image: catthehacker/ubuntu:act-latest
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
 
+      - name: 🐳 Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+
       - name: 🔐 Registry Login
         run: |
           echo "${{ secrets.REGISTRY_PASS }}" | docker login registry.infra.mintel.me -u "${{ secrets.REGISTRY_USER }}" --password-stdin