Update actions/setup-node action to v2.4.1

Author: renovate-bot

.github/workflows/pages.yml

@@ -18,7 +18,7 @@ jobs:
           fetch-depth: 0
 
       - name: Setup Node.js
-        uses: actions/[email protected].0
+        uses: actions/[email protected].1
         with:
           # 选择要使用的 node 版本
           node-version: '14'