upgrade node in tests

Author: daquinoaldo

.github/workflows/test.yml

@@ -10,7 +10,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macOS-latest]
-        node: [10, 12, 14]
+        node: [12, 14, 16]
 
     steps:
       - uses: actions/checkout@v2