Migrate to cargo_embargo. am: 7dd75b637c am: b8ca05e687 am: 4d171391fd

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/atty/+/2838078

Change-Id: I391108474543d08dd3d544d0da3e6bd29ebc53f0
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>