Use Mockito 4.6.1 API am: 93e79b56c2

Bug: 264918004
Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/KeyChain/+/20838149

Change-Id: Ie9a913056bd1a0401600be00651c375b504a3aa5
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>