Merge "RESTRICT AUTOMERGE: Explicitly ignore the result of std::async" into main am: 6dfc621b2a

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/2673908

Change-Id: I38281a7eed595473ed2b682f9bd0f62c3f1b00a4
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>