[@nativescript/datetimepicker] Bug in datetimepicker callback showing false date

Issue Summary:
The DateTimePicker in Android is exhibiting unexpected behavior when selecting a date in February. The callback is returning a date in the following month instead of the selected date.

Steps to Reproduce:

1. Open the app. https://stackblitz.com/edit/nativescript-stackblitz-templates-knotdp?file=src%2Fapp%2Fitem%2Fitems.component.ts
2. Click on the start date to open the DateTimePicker.
3. Select any date in February.

Expected Behavior:
The callback should return the selected date accurately.

Actual Behavior:
The callback returns a date in the next month instead of the selected date.

从 src/app/item/items.component.ts 中的 StackBlitz 复现开始，针对二月的日期复现 Android DateTimePicker 回调问题。从该入口点跟踪 datetimepicker 回调，并验证回调返回所选日期而不是下个月时能够完成。