Run CI against the new server preferred Node.js version

Author: pimterry

.github/workflows/ci.yml

@@ -18,7 +18,7 @@ jobs:
 
       - uses: actions/setup-node@v1
         with:
-          node-version: 14
+          node-version: 16
 
       - name: Get npm cache directory
         id: npm-cache