Update node version

Author: DerEchtePilz

.github/workflows/build.yml

@@ -40,7 +40,7 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v2
         with:
-          node-version: '18'
+          node-version: '20'
 
       - name: Install Docs Dependencies
         run: yarn install