🐛[BUG]ProFormColorPicker onChange 类型错误 是AggregationColor

提问前先看看：

https://github.com/ryanhanwu/How-To-Ask-Questions-The-Smart-Way/blob/main/README-zh_CN.md

### 🐛 bug 描述
ProFormColorPicker onChange 类型错误

### 📷 复现步骤

### 🏞 期望结果

### 💻 复现代码
```
{
// setBackgroundColor(color.toHexString());
// console.log(color.toHexString());
// console.log(background.color);
form.setFieldsValue({
background: {
use: 'color',
image: [],
color: color.toHexString(),
},
});
},
}}
/>
```

### © 版本信息

- ProComponents 版本: [e.g. 4.0.0]
- umi 版本
- 浏览器环境
- 开发环境 [e.g. mac OS]

### 🚑 其他信息

Start at the ProFormColorPicker component and inspect the type exposed for fieldProps.onChange, focusing on why the callback is not accepted with AggregationColor. Use the reproduction snippet to verify the reported TypeScript error and confirm that the callback receives the expected color type after the issue is addressed.

Written by the indexing model from the issue text.