Add apex_available and min_sdk_version to arbitrary crate. am: 5ca7816403 am: 135e34b109 am: ec3a7b2a50

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/arbitrary/+/2057767

Change-Id: Ibdbba868a0d1bb69873e32f09a5cd4f0dcd6ee1e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>