Update face authenticating asset

Update pulsing asset for face authenticating in BiometricPrompt

Flag: EXEMPT bugfix
Test: atest PromptViewModelTest
Test: (manual) Verify face auth icon pulses at correct speed
Test: (manual) Verify face auth has right colors in dark and light theme
Fixes: 329480356
Change-Id: Ieab77cd8d500a79b25b2218dcb69a968d5a4e72d
6 files changed