Merge "Migrate to cargo_embargo." into main am: 4f7172de65 am: f622a66b55 am: 3db1182d37

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/ring/+/2841414

Change-Id: I0fd77e4afec41e1b0a70dbc5f40f5385a72a3649
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>