Upgrade rust/crates/async-trait to 0.1.48 am: 5448f37621 am: 5a23a1fcb2 am: 518aac137a am: 5b1ad42c6c

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/async-trait/+/1662668

Change-Id: I942729ee5bb11c0ca97a6e7a19f1575f2da0d6a0