[DatePicker] [A11y] Keyboard navigation doesn't work with "next month" button

Description: When using an attached Bluetooth keyboard to navigate through the Date Picker, pressing either "tab" or "down arrow" on the "next month" button actually moves to the previous month and then navigates to the first day of that month.

Expected behavior: I would expect the tab key to navigate to the first date inside the calendar for the current month in this case.

Source code: The issue can be reproduced with the M3 Catalog app (see attached video).

Minimal sample app repro: The issue can be reproduced with the M3 Catalog app (see attached video).

Android API version: Upside Down Cake

Material Library version: 1.9.0+ (reproduced building the M3 catalog from master, but also appears to exist on 1.9.0)

Device: Pixel 5

https://github.com/material-components/material-components-android/assets/26826628/293a23e5-eb50-441f-ae9c-0db4ed88224a

Inizia riproducendo il problema nell’app M3 Catalog con la tastiera collegata, quindi traccia la gestione del focus di DatePicker per il pulsante "next month". Verifica che Tab e la freccia giù spostino alla prima data del mese corrente anziché al mese precedente e conferma il comportamento nelle versioni di Android e Material Library indicate.