更新 Docker 登录步骤，添加缺失的注册表配置

.github/workflows/sync.yaml

@@ -21,12 +21,14 @@ jobs:
       - name: Login to Docker Hub
         uses: docker/login-action@v3
         with:
+          registry: docker.io
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_PASSWORD }}
 
       - name: Login to GHCR
         uses: docker/login-action@v3
         with:
+          registry: ghcr.io
           username: ${{ secrets.GHCR_USERNAME }}
           password: ${{ secrets.GHCR_PASSWORD }}
       
@@ -34,6 +36,7 @@ jobs:
       - name: Login to Liteyuki Harbor
         uses: docker/login-action@v3
         with:
+          registry: reg.liteyuki.icu
           username: ${{ secrets.LITEYUKIHARBOR_USERNAME }}
           password: ${{ secrets.LITEYUKIHARBOR_PASSWORD }}