Upgrade: Bump codecov/codecov-action from 1.5.2 to 2.0.1

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 1.5.2 to 2.0.1.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/master/CHANGELOG.md)
- [Commits](codecov/codecov-action@v1.5.2...v2.0.1)

---
updated-dependencies:
- dependency-name: codecov/codecov-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/test.yml

@@ -25,7 +25,7 @@ jobs:
     - run: npm i
     - run: npm test
     - run: npm run lcov
-    - uses: codecov/codecov-action@v1.5.2
+    - uses: codecov/codecov-action@v2.0.1
       if: ${{ github.event_name == 'pull_request' }}
       with:
         flags: ${{ matrix.os }}-${{ matrix.node }}