DateTimePickerDialog:Talkback stays silent on invoking 'Next/Previous month' button in 'Pick a date & time'

[ss-nitd]

Expected Result:
Talkback should announce about the month which appears on invoking the 'Next/Previous month' button
Ex: By double tap on Next month button, talkback should announce displayed month(Ex: December 2021)

Actual Result:
Talkback remains silent after hitting on 'Next/Previous month' button

User Impact: ​
Talkback users will get confused to navigate further and access other elements.

Month-.Talkback.announcement.mp4