Merge pull request #7 from jupyter-book/agoose77/fix-further-ci

🐛 Update CI NodeJS

Author: agoose77

.github/workflows/deploy.yml

@@ -32,7 +32,7 @@ jobs:
         uses: actions/configure-pages@v3
       - uses: actions/setup-node@v4
         with:
-          node-version: 18.x
+          node-version: 20.x
       - name: Install MyST Markdown
         run: npm install
       - name: Build HTML Assets