chore(Node): Drop Node 8, add 14

- Remove support & testing for node 8
- Add node 14

BREAKING CHANGE: Node 8 no longer supported

Author: cblanc

.github/workflows/ci.yml

@@ -39,3 +39,5 @@ jobs:
 
       - name: Coverage
         run: npm run coverage
+        env:
+          CODECOV_TOKEN:  ${{ secrets.CODECOV_TOKEN }}