[Suggest] Support jacoco and Codecov

[psxjoy]

Why do you need it?

JaCoCo and Codecov are valuable tools for developers to measure, report, and improve test coverage effectively. IMO, integrating these tools can provide better insights into unit test coverage and contribute to improving the overall code quality and maintainability of the project.

使用 JaCoCo 和 Codecov 可以有效地测量、报告和改进代码的测试覆盖率。我认为增加之后，能够更好的衡量项目的单元测试覆盖率，提高项目代码的整体规范。

How could it be?

A GitHub Action is automatically triggered with every PR submission, generating and returning the Codecov test coverage report.
每次提交PR时，会自动触发 github action，返回 codecov的测试覆盖率报告。

Other related information

If this suggestion is accepted, Feel free to assign it to me anytime:)