fix more

.github/workflows/ghrc-push-main.yml

@@ -13,15 +13,19 @@ jobs:
   # Build ARM64 image on native ARM64 runner
   build-arm64:
     runs-on: [linux-arm64]
+    permissions:
+      contents: read
+      packages: write
     steps:
       - name: Checkout Repository
         uses: actions/checkout@v4
 
-      - name: Log in to Docker Hub
+      - name: Log in to GitHub Container Registry
         uses: docker/login-action@v3
         with:
-          username: ${{ secrets.DOCKER_USERNAME }}
-          password: ${{ secrets.DOCKER_PASSWORD }}
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Extract metadata (tags, labels) for Docker
         id: meta