Run test on Node.js v12, v14 and v16

Author: puku0x

.github/workflows/nodejs.yml

@@ -49,7 +49,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        node: [10, 12]
+        node: [12, 14, 16]
 
     steps:
       - uses: actions/checkout@v2