Add step to install Docker CLI in build-and-push workflow

.gitea/workflows/build-and-push.yaml

@@ -11,6 +11,10 @@ jobs:
       - name: Checkout repo
         uses: actions/checkout@v3
 
+      - name: Install Docker CLI
+        run: |
+          apt-get update && apt-get install -y docker.io
+
       - name: Set up Docker
         uses: docker/setup-buildx-action@v2