Add janitors to the OWNERS file am: 892de95f5f

Original change: https://android-review.googlesource.com/c/platform/external/google-fonts/arbutus-slab/+/3423585

Change-Id: Ie33eab128e1f3a217254f084f3e0df2402e820dc
Signed-off-by: Automerger Merge Worker <[email protected]>