Migrate to cargo_embargo. am: cbb2c115f9 am: a625e8b1a9 am: 3ad9ce5667

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/tokio-stream/+/2828230

Change-Id: If9a336f36a2a8b55cfb16a1059d8b8de8b334d8e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>