Add arthuri@ to hardware/interfaces contexthub OWNERS am: 3294beb8e0

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/3340933

Change-Id: Iae9cd43dcbcb3b038657f6cd70f401275b5bba73
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>