Move OWNER reference master=>main. am: 7e4ca8bd03 am: 37b85ac4f2 am: f5cc65b0e9

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/threadpool/+/2661052

Change-Id: Iec90b2194521bf712c9837c9a2a8f3cd87a55268
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>