try using own container registry

.gitea/workflows/build.yaml

@@ -13,6 +13,11 @@ jobs:
 
     - uses: https://gitea.com/actions/checkout@v4
 
+    - name: Create Kubeconfig
+      run: |
+        mkdir $HOME/.kube
+        echo "${{ secrets.BUILDX_KUBECONFIG }}" > $HOME/.kube/config
+    
     - name: Login to Docker Registry
       uses: docker/login-action@v3
       with:
@@ -22,6 +27,11 @@ jobs:
 
     - name: Set up Docker Buildx
       uses: docker/setup-buildx-action@v3
+      with:
+        driver: kubernetes
+        driver-opts: |
+          namespace=gitea
+          qemu.install=true
 
     - name: Build and push
       uses: docker/build-push-action@v5