Dependency Updates (#23)

* Dependency Updates

* Remove node 10 support?

* Add node 16/18 testing

Author: John Richard Chipps-Harding

.github/workflows/test.yml

@@ -8,7 +8,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [10.x, 12.x, 14.x]
+        node-version: [12.x, 14.x, 16.x, 18.x]
 
     steps:
       - uses: actions/checkout@v1