docs: 📝 documentation for DatePicker inputReadOnly (#22024)

close #20442
close #21831
close #20816

CHANGELOG.en-US.md

@@ -331,6 +331,7 @@ Ant Design 4.0-rc released! Here is the release [document](https://github.com/an
   - 🌟 The range selector can be set to `disabled` separately for the start and end time.
   - 🌟 The range selector allows empty start and end times.
   - 🌟 Optimized manual input and keyboard interaction support.
+  - 🌟 Added `inputReadOnly` to disable manual input.
 - 🌟 Remove Icon and use `@ ant-design / icons` instead. [#18217](https://github.com/ant-design/ant-design/pull/18217)
 - Skeleton
   - 🌟 Support Skeleton.Avatar placeholder component. [#19898](https://github.com/ant-design/ant-design/pull/19898) [@Rustin-Liu](https://github.com/Rustin-Liu)

CHANGELOG.zh-CN.md

@@ -331,6 +331,7 @@ Ant Design 4.0-rc 发布，发布文档请查看[此处](https://github.com/ant-
   - 🌟 范围选择器可以为开始与结束时间单独设置 `disabled`。
   - 🌟 范围选择器可以允许开始与结束时间为空。
   - 🌟 优化手工输入与键盘交互支持。
+  - 🌟 支持 `inputReadOnly` 禁用手动输入。
 - 🌟 移除 Icon，使用 `@ant-design/icons` 代替。[#18217](https://github.com/ant-design/ant-design/pull/18217)
 - Skeleton
   - 🌟 支持 Skeleton.Avatar 占位组件。[#19898](https://github.com/ant-design/ant-design/pull/19898) [@Rustin-Liu](https://github.com/Rustin-Liu)

components/date-picker/index.en-US.md

@@ -65,6 +65,7 @@ The following APIs are shared by DatePicker, YearPicker, MonthPicker, RangePicke
 | style | to customize the style of the input box | object | {} |  |
 | onOpenChange | a callback function, can be executed whether the popup calendar is popped up or closed | function(status) | - |  |
 | onPanelChange | callback when picker panel mode is changed | function(value, mode) | - |  |
+| inputReadOnly | Set the `readonly` attribute of the input tag (avoids virtual keyboard on touch devices) | boolean | false |  |
 
 ### Common Methods
 

components/date-picker/index.zh-CN.md

@@ -67,6 +67,7 @@ import 'moment/locale/zh-cn';
 | style | 自定义输入框样式 | object | {} |  |
 | onOpenChange | 弹出日历和关闭日历的回调 | function(status) | 无 |  |
 | onPanelChange | 日历面板切换的回调 | function(value, mode) | - |  |
+| inputReadOnly | 设置输入框为只读（避免在移动设备上打开虚拟键盘） | boolean | false |  |
 
 ### 共同的方法