Migrate to cargo_embargo. am: deac707af7 am: 634c3efce4 am: 4456edce40

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/clap/+/2859887

Change-Id: Ia5b2da339c6f09d8ec37fb53e94611f2adc36aab
Signed-off-by: Automerger Merge Worker <[email protected]>