chore(workflow): 为 GitHub Pages 工作流添加内容写入权限

- 在工作流配置中添加了 contents: write 权限
- 确保部署过程具有必要的文件操作权限

Author: fengxiaotx

.github/workflows/gh-pages.yml

@@ -12,6 +12,9 @@ concurrency:
   group: pages-${{ github.workflow }}-${{ github.ref }}
   cancel-in-progress: true
 
+permissions:
+  contents: write
+
 jobs:
   build-and-deploy:
     runs-on: ubuntu-latest