Update TEST_MAPPING am: 4b1948c7bf am: 35f30b06b4

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/async-stream-impl/+/2411813

Change-Id: I1ef5daf36fe2e9f1ad23ad21445cc29b98049a9d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>