Move OWNER reference master=>main. am: 83c697a331 am: 993f669815 am: ba36101d8d am: 592e1f605a

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/utf-8/+/2662530

Change-Id: I68f18667bf5932c747faf516b9af759a05665709
Signed-off-by: Automerger Merge Worker <[email protected]>