ci: add nodejs v16 to test matrix (#91)

Author: Fdawgs

.github/workflows/ci.yml

@@ -16,7 +16,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [10.x, 12.x, 14.x]
+        node-version: [10, 12, 14, 16]
         os: [macos-latest, ubuntu-latest, windows-latest]
 
     steps:
@@ -33,7 +33,7 @@ jobs:
 
       - name: Run Tests
         run: |
-          npm run test
+          npm test
 
   automerge:
     needs: test