Migrate to cargo_embargo. am: 5f2cd90e64 am: 9637d6faa0

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/ciborium-ll/+/2824518

Change-Id: I1851e05f7d9da4a7c53bd6fa0d15a869ca596581
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>