ci: node version

Author: hyuse202

.github/workflows/ci.yml

@@ -20,7 +20,7 @@ jobs:
       - name: Set up Node.js
         uses: actions/setup-node@v2
         with:
-          node-version: '18'  # Specify the Node.js version
+          node-version: '20'  # Specify the Node.js version
       - name: navigation frontpage
         run: cd spez-frontend
       - name: Install dependencies