Merge "For `scan_manager_refactor`, wait for the completion of...

Merge "For `scan_manager_refactor`, wait for the completion of `start_up_rust_module_async`." into main am: 0022c7b7

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/3322396



Change-Id: I0219c6ea81b34823c9b86ba2e2f347163dca40d8
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>