ci(workflow): 更新部署工作流以使用pnpm和Node.js 20

- 添加pnpm安装步骤并指定版本9
- 配置Node.js 20环境并启用pnpm缓存
- 将npm命令替换为pnpm等效命令

.github/workflows/deploy.yml

@@ -12,11 +12,22 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v3
 
+      - name: Install pnpm
+        uses: pnpm/action-setup@v2
+        with:
+          version: 9
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v3
+        with:
+          node-version: 20
+          cache: 'pnpm'
+
       - name: Install Dependencies
-        run: npm install
+        run: pnpm install
 
       - name: Build
-        run: npm run build
+        run: pnpm run build
 
       - name: Deploy to page branch
         uses: peaceiris/actions-gh-pages@v3