update node versions for testing (#260)

* update node versions for testing

Update node versions to latest LTS versions

Author: joeferner

.github/workflows/tests.yml

@@ -46,7 +46,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        node-version: [10.x, 12.x, 14.x, 16.x]
+        node-version: [14.x, 16.x]
         os: [ubuntu-latest, windows-latest, macos-latest]
 
     steps: