release 0.4.2.1

[pengzhenghao]

What changes do you make in this PR?

• Please describe why you create this PR

Checklist

• [ ] I have merged the latest main branch into current branch.
• [ ] I have run bash scripts/format.sh before merging.
• Please use "squash and merge" mode.

[github-actions[bot]]

[BOT] Great job! You have changed the docstring coverage from 30.26% to 30.26%, improving 0.000%.