fix(material/datepicker): incorrect year count in aria label (#22763)
fix(material/datepicker): incorrect year count in aria label (#22763)

Fixes that the `aria-label` of the navigation buttons in the year view said "20 years", even though we're showing 24 years.

Fixes #22758.
josephperrott/material2,mmalerba/material2,angular/components,josephperrott/material2,mmalerba/material2,crisbeto/material2,crisbeto/material2,DevVersion/material2,josephperrott/material2,angular/components,mmalerba/material2,crisbeto/material2,crisbeto/material2,mmalerba/material2,DevVersion/material2,mmalerba/material2,josephperrott/material2,angular/components,DevVersion/material2,DevVersion/material2,angular/components,DevVersion/material2,josephperrott/material2