修改TimePicker 时间格式

Change-Id: I1e348d64453df48452f3cdbfc27dc59742b0c9ed
Signed-off-by: Nzhangxiao72 <zhangxiao72@huawei.com>

en/application-dev/reference/arkui-ts/ts-basic-components-timepicker.md

@@ -55,7 +55,7 @@ Creates a time picker whose default time range is from 00:00 to 23:59.
 @Entry
 @Component
 struct TimePickerExample {
-  private selectedTime: Date = new Date('7/22/2022 8:00:00')
+  private selectedTime: Date = new Date('2022-07-22T08:00:00')
 
   build() {
     Column() {

zh-cn/application-dev/reference/arkui-ts/ts-basic-components-timepicker.md

@@ -55,7 +55,7 @@ TimePicker(options?: {selected?: Date})
 @Entry
 @Component
 struct TimePickerExample {
-  private selectedTime: Date = new Date('7/22/2022 8:00:00')
+  private selectedTime: Date = new Date('2022-07-22T08:00:00')
 
   build() {
     Column() {