[react component] antd v5 已经移除了css 支持

[mashirozx]

功能描述

相关代码：
https://github.com/antvis/X6/blob/master/packages/x6-react-components/src/toolbar/item.tsx#L5

期望解决方案

antd v5 已经正式发布了，希望这边能尽快支持～其实接口变动不大，这边主要的变化就是不需要引入css了

[x6-bot]

👋 @mashirozx

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[x6-bot]

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