Update doc.yml

Author: zhaojing1987

.github/workflows/doc.yml

@@ -17,7 +17,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@master
-        
+    - uses: actions/setup-node@v4
+      with:
+        node-version: 18
     - name: Docusaurus build
       run: |
         yarn install