Update node.js.yml

Author: TheTechsTech

.github/workflows/node.js.yml

@@ -16,7 +16,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [macos-latest, ubuntu-latest, windows-latest]
-        node-version: [12.x, 14.x]
+        node-version: [12.x, 14.x, 16.x]
 
     steps:
     - uses: actions/checkout@v2