Migrate to cargo_embargo. am: 7dd75b637c am: 85614217d0

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

Change-Id: If0412ffc2d3807dafbb258060bc0ceac01acf4a0
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>