chore(deps): update codecov/codecov-action action to v2 (#69)

Co-authored-by: Renovate Bot <bot@renovateapp.com>

Author: renovate[bot]

.github/workflows/codecov.yml

@@ -15,4 +15,4 @@ jobs:
           yarn test-coverage
       - name: Upload coverage
         if: success()
-        uses: codecov/codecov-action@v1
+        uses: codecov/codecov-action@v2