Build with mls_build_async am: d353d97a3b

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/mls-rs-codec/+/3071642

Change-Id: I5efd33ffead6645f0d103306ae7a5cb6f17db7b9
Signed-off-by: Automerger Merge Worker <[email protected]>