Make tokio-test available to product and vendor am: 4a4c54ae46 am: 79cda303f9 am: d91ec54450 am: 89e527ea03

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/tokio-test/+/2476295

Change-Id: Ie97ecfbd741a21e5aa698338d75aa48e4b94f4ce
Signed-off-by: Automerger Merge Worker <[email protected]>