chore: assign node version in github actions

.github/workflows/deploy-example.yml

@@ -17,6 +17,11 @@ jobs:
       # 获取源码
       - name: Checkout
         uses: actions/[email protected]
+      # 指定Node版本
+      - name: Setup node.js version
+        uses: actions/setup-node@v3
+        with:
+          node-version: '18'
       # 安装Pnpm
       - name: Install Pnpm
         run: npm install pnpm -g