- Used UtcDates to return the UTC milliseconds of today in local timezone.
- Previous method is replaced with thisMonthInUtcMilliseconds, which fits its function better.
Resolves https://github.com/material-components/material-components-android/issues/778
PiperOrigin-RevId: 283981946
(cherry picked from commit 77ce281f04d1ee603d2bac24bb98791949c51ae7)