CI: try fixing login and push

.gitea/workflows/rebuild.yml

@@ -14,25 +14,21 @@ jobs:
         uses: actions/checkout@v3
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v1
+        uses: docker/setup-buildx-action@v2
+
+      - name: Login to Docker Hub
+        uses: docker/login-action@v2
+        with:
+          username: ${{ gitea.repository_owner }}
+          password: ${{ secrets.GITEA_TOKEN}}
 
       - name: Build and Push Docker Image
-        run: |
-          # Set your Docker registry and image name
-          REGISTRY_NAME="git.kucharczyk.xyz/${DOCKER_USERNAME}/containers/gitea"
-          # Optionally, set a tag for your image (e.g., a commit SHA)
-          #TAG="${{ gitea.sha }}"
-          TAG="latest"
-          
-          # Build the Docker image
-          docker buildx create --use
-          docker buildx build --file Dockerfile -t "${REGISTRY_NAME}:${TAG}" .
-
-          # Log in to the container registry (replace with your authentication method)
-          docker login -u "${{ gitea.repository_owner }}" -p "$DOCKER_PASSWORD" your-registry-url.com
-
-          # Push the image to the container registry
-          docker push "${REGISTRY_NAME}:${TAG}"
+        uses: docker/build-push-action@v4
+        with:
+          context: .
+          file: ./Dockerfile
+          push: true
+          tags: git.kucharczyk.xyz/${{ gitea.repository_owner }}/containers/gitea:latest
 
         env:
           DOCKER_USERNAME: ${{ gitea.repository_owner }}