7/n: Gracefully handle configuration change during animations

If the dialog goes through configuration change but is already animating
away, we should send the callback immediately. Similary, there is no need
to re-create the dialog in onConfigurationChanged, since the lifecycle
is already ended and the callback is already sent to the client.

Bug: 123378871

Test: atest com.android.systemui.biometrics
Test: manual
Change-Id: I5c771982a3eef1a0583fb5171ffc7a9d91756396