Merge pull request #428 from abraham/node

Test on newer Node.js versions

Author: abraham

.github/workflows/index.yaml

@@ -6,7 +6,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        node: [12, 14]
+        node: [12, 14, 16]
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-node@v2