tried again to fix #15

.gitea/workflows/release-docker.yaml

@@ -7,15 +7,19 @@ on:
 jobs:
   build-and-push:
     runs-on: docker-builder
+
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
 
-      - name: Set up QEMU
-        uses: actions/setup-qemu-action@v3
+      - name: Enable QEMU for multi-arch builds
+        run: |
+          docker run --privileged --rm tonistiigi/binfmt --install all
 
-      - name: Set up Docker Buildx
-        uses: actions/setup-buildx-action@v3
+      - name: Create and use Docker Buildx builder
+        run: |
+          docker buildx create --name miauinv-builder --use || docker buildx use miauinv-builder
+          docker buildx inspect --bootstrap
 
       - name: Log in to Gitea Container Registry
         run: |
@@ -23,13 +27,12 @@ jobs:
             --username "${{ secrets.REGISTRY_USER }}" \
             --password-stdin
 
-      - name: Build and push Docker image
-        uses: docker/build-push-action@v6
-        with:
-          context: .
-          file: ./Dockerfile
-          push: true
-          platforms: linux/amd64,linux/arm64
-          tags: |
-            git.miaurizius.de/${{ gitea.repository }}:latest
-            git.miaurizius.de/${{ gitea.repository }}:${{ gitea.event.release.tag_name }}
+      - name: Build and push multi-arch Docker image
+        run: |
+          docker buildx build \
+            --platform linux/amd64,linux/arm64 \
+            --file ./Dockerfile \
+            --tag git.miaurizius.de/${{ gitea.repository }}:latest \
+            --tag git.miaurizius.de/${{ gitea.repository }}:${{ gitea.event.release.tag_name }} \
+            --push \
+            .