Specify Node 20 in workflows and examples

.github/workflows/check-dist.yml

@@ -20,10 +20,9 @@ jobs:
     steps:
       - uses: actions/checkout@v3
 
-      - name: Set Node.js 16.x
-        uses: actions/setup-node@v3
+      - uses: actions/setup-node@v3
         with:
-          node-version: 16.x
+          node-version: '20.x'
           cache: npm
 
       - name: Install dependencies