Update Android.bp by running cargo_embargo am: 7612cfe216

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/heck/+/3095618

Change-Id: I4231046f19e3792c584bfa48f7029c55dd981b84
Signed-off-by: Automerger Merge Worker <[email protected]>