fix: 修复TextArea在Chrome下达到最大高度后右侧滚动条闪烁的问题

[aimer-fan]

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   windows下Textarea组件，设置了autoSize后，当行数大于maxRows后，框中的滚动条就会一直闪烁 #1964

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[tangjinzhou]

感谢pr，不过使用 settimeout 会在超过最大高度时抖动一下
0b7481e 关注下这个

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