[RONs] New promotability characteristics are now part of android.app.ui_rich_onging

Previously these were part of android.app.opt_in_rich_onging. That will be the flag used to make the builder and extra APIs public. But for now we want these behaviors in the 25Q3 release.

Flag: android.app.ui_rich_ongoing
Fixes: 415070395
Test: NotificationTest
Change-Id: If87ed36db184de274587f3d57ad7264c80f1febc