test: Gracefully ignore cancel request if one no longer pending am: 5cae59c5 am: 821c3537

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/2924649



Change-Id: I31ba20d612be59e5cb8c5b9b8f5e654a90dcb8a3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>