Update github actions

Author: joshuajaco

.github/workflows/ci.yml

@@ -27,6 +27,6 @@ jobs:
       - run: npm run lint
       - run: npm test
       - name: Coveralls
-        uses: coverallsapp/github-action@master
+        uses: coverallsapp/github-action@v2
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}