Update node versions in CI tests

Author: xg-wang

.github/workflows/ci.yml

@@ -100,7 +100,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        node-version: ['14', '12', '10']
+        node-version: [16.x, 14.x, 12.x]
 
     steps:
       - name: Checkout Code