fix: fix eslint warning

[yiyunwan]

Before submitting a pull request, please make sure the following is done...

• [ ] Ensure the pull request title and commit message follow the Commit Specific in English.
• [ ] Fork the repo and create your branch from master or formily_next.
• [ ] If you've added code that should be tested, add tests!
• [ ] If you've changed APIs, update the documentation.
• [ ] Ensure the test suite passes (npm test).
• [ ] Make sure your code lints (npm run lint) - we've done our best to make sure these rules match our internal linting guidelines.

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