Upgrade ahash to 0.8.7 am: 4a8bf86527

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/ahash/+/2939700

Change-Id: I77d3200150b7e21a8fb658b27bca58ca94135ed9
Signed-off-by: Automerger Merge Worker <[email protected]>