Configure docker before

.gitea/workflows/build.yml

@@ -29,9 +29,20 @@ jobs:
       id-token: write
 
     steps:
+      - name: Install docker
+        run: apt update && apt install -y docker.io
+
       - name: Checkout
         uses: https://github.com/actions/checkout@v3
 
+      - name: Set up QEMU
+        uses: https://github.com/docker/setup-qemu-action@v3
+        with:
+          platforms: amd64
+
+      - name: Set up Docker Buildx
+        uses: https://github.com/docker/setup-buildx-action@v3
+
       - name: Generate tags
         id: generate-tags
         shell: bash
@@ -108,7 +119,8 @@ jobs:
       # to consume. For more details, review the image signing section of the README.
 
       # Sign container
-      - uses: https://github.com/sigstore/cosign-installer@v3.5.0
+      - name: Install cosign
+        uses: https://github.com/sigstore/cosign-installer@v3.5.0
         if: gitea.event_name != 'pull_request'
 
       - name: Sign container image