[enhancement] Optimize yapf check

[BobAnkh]

Is your feature request related to a problem? Please describe

Now the yapf only checks on schedule. It should check on push and pull request.

Ref:#37

Description of the new feature/enhancement

The yapf formatter workflow should format the python code and upload the diff as artifacts. Another workflow uses the artifacts to create a comment, telling the contributor to format or modify the code style.

Proposed technical implementation details (optional)

• [ ] Install yapf and upload results as artifacts. This could be done within the dockerfile and entrypoint.sh
• [ ] Use the artifacts to create a comment in the pull request.

Additional context

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