second attempt to fix the docker build workflow

.gitea/workflows/build.yaml

@@ -26,16 +26,11 @@ jobs:
       - name: Build the project
         run: cd frontend && npm run build
 
-  build-and-push-docker-image:
-    runs-on: ubuntu-latest
-    needs: build-portfolio-website
-    if: success()
-    steps:
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v2
+        uses: docker/setup-buildx-action@v3
         with:
-          driver: docker-container
-          install: true
+          config-inline: |
+            [${{ secrets.DOCKER_REGISTRY }}]
 
       - name: Login to Docker registry
         uses: docker/login-action@v2