Enable test code coverage report on pull request

### What is the version of your Accelerated Container Image

_No response_

### What would you like to be added?

Onboard https://codecov.io/ to provide test code coverage report on pull request

### Why is this needed for Accelerated Container Image?

Improve code quality

### Are you willing to submit PRs to contribute to this feature?

- [X] Yes, I am willing to implement it.