Use Node 22 for updating documents (#265)

Author: seratch

.github/workflows/update-docs.yml

@@ -25,7 +25,7 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: 20
+          node-version: 22
           cache: 'pnpm'
       - name: Install dependencies
         run: pnpm install