Upgrade async-stream-impl to 0.3.4 am: 542806003b am: d275319ec6 am: 6e66b26c56 am: 85d9b06ef5

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/async-stream-impl/+/2466093

Change-Id: I6a122ffe598d17955f44c27a1ee4ed2d5f970c90
Signed-off-by: Automerger Merge Worker <[email protected]>