Move OWNER reference master=>main. am: b4848038eb am: f62171d7e7 am: e789740e1e am: 7f2c84add9

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/gdbstub_arch/+/2662736

Change-Id: I85798d3b2c7b1345b3b5fe5156147f7dfb3c7520
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>