Move OWNER reference master=>main. am: 4cdc125034 am: 63e4a8bc35 am: e84a8e4a13 am: c58ae55baa

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/ciborium-io/+/2661252

Change-Id: Id456bb213f32a5a21a34676267e7adcb0dcd3881
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>