bump to node 20

Author: adrianstephens

.github/workflows/build.yaml

@@ -19,7 +19,7 @@ jobs:
       - name: Set up Node.js
         uses: actions/setup-node@v2
         with:
-          node-version: '16'
+          node-version: '20'
 
       - name: Install dependencies
         run: npm install