uni-datetime-picker 日期范围选择在 IOS Safari 浏览器出现异常

### 开发环境

- uni-ui 版本@dcloudio/uni-ui": "^1.5.7"

### 测试环境

- iPhone 15 pro

### bug问题

如上组件代码，在 Safari 浏览器设置日期范围后，无论怎么选择 model.dates 都是 2024-12-04
在 Android 和 PC 浏览器都是正常的

Start with the uni-datetime-picker component using type="daterange" and the supplied start, end, and v-model values. Reproduce the issue on iOS Safari, then compare the date-range selection behavior with Android and desktop browsers. Done means model.dates reflects the selected range consistently across these environments.

Written by the indexing model from the issue text.