Fix time.strftime("%p")

[kengoon]

The below code does not work properly on other platforms except android https://github.com/kivymd/KivyMD/blob/b5bc79fb71312868be86580b7b32f676926ceb80/kivymd/uix/pickers/timepicker/timepicker.py#L825-L839

The reason is simply because materialyoucolor-python which KivyMD depends on has an exception with pyjnius that was not handled properly, thereby messing up with time.strftime("%p"). A fix for that is already on the way. So when fix is merged, the _get_data method should be updated to something like this

def _get_data(self):
        result = datetime.datetime.strptime(
            f"{int(self.hour):02d}:{int(self.minute):02d} {self.am_pm}",
            "%I:%M %p",
        ).time()
        return result