Update docker-image.yml

.github/workflows/docker-image.yml

@@ -9,10 +9,17 @@ jobs:
     permissions:
       contents: read
       packages: write  # 必须授权以推送镜像
+    env:
+      REPO_NAME: ${{ github.repository }}
     steps:
       - name: 检出代码
         uses: actions/checkout@v4
 
+      - name: 设置小写镜像名称
+        run: |
+          LOWER_NAME=$(echo "$REPO_NAME" | tr '[:upper:]' '[:lower:]')
+          echo "LOWER_NAME=$LOWER_NAME" >> $GITHUB_ENV
+
       - name: 登录到 GitHub Container Registry
         uses: docker/login-action@v2
         with:
@@ -26,6 +33,5 @@ jobs:
           context: .
           push: ${{ github.event_name == 'push' }}  # 仅推送代码时上传镜像
           tags: |
-            ghcr.io/${{ format('{0}:latest', toLower(github.repository)) }}
-            ghcr.io/${{ format('{0}:{1}', toLower(github.repository), github.sha) }}
-            ghcr.io/${{ format('{0}:{1}', toLower(github.repository), github.ref_name) }}
+            ghcr.io/${{ env.LOWER_NAME }}:latest
+            ghcr.io/${{ env.LOWER_NAME }}:${{ github.sha }}