ci: 禁用Docker Hub构建和推送步骤

暂时注释掉Docker Buildx设置、Docker Hub登录和镜像构建推送步骤，
保留Container Registry登录和元数据提取功能。

.github/workflows/docker-build.yml

@@ -15,14 +15,14 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v4
 
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+      # - name: Set up Docker Buildx
+      #   uses: docker/setup-buildx-action@v3
 
-      - name: Log in to Docker Hub
-        uses: docker/login-action@v3
-        with:
-          username: ${{ secrets.DOCKERHUB_USERNAME }}
-          password: ${{ secrets.DOCKERHUB_TOKEN }}
+      # - name: Log in to Docker Hub
+      #   uses: docker/login-action@v3
+      #   with:
+      #     username: ${{ secrets.DOCKERHUB_USERNAME }}
+      #     password: ${{ secrets.DOCKERHUB_TOKEN }}
 
       - name: Log in to Container Registry
         uses: docker/login-action@v3
@@ -45,14 +45,14 @@ jobs:
             type=raw,value=beta,enable=${{ endsWith(github.ref, '-beta') }}
             type=raw,value=latest,enable=${{ !contains(github.ref, '-') }}
 
-      - name: Build and push Docker image
-        id: build
-        uses: docker/build-push-action@v5
-        with:
-          context: .
-          platforms: linux/amd64,linux/arm64
-          push: true
-          tags: ${{ steps.meta.outputs.tags }}
-          labels: ${{ steps.meta.outputs.labels }}
-          build-args: |
-            VERSION=${{ github.ref_name }}
+      # - name: Build and push Docker image
+      #   id: build
+      #   uses: docker/build-push-action@v5
+      #   with:
+      #     context: .
+      #     platforms: linux/amd64,linux/arm64
+      #     push: true
+      #     tags: ${{ steps.meta.outputs.tags }}
+      #     labels: ${{ steps.meta.outputs.labels }}
+      #     build-args: |
+      #       VERSION=${{ github.ref_name }}