Add janitors to the OWNERS file am: 702028acd8

Original change: https://android-review.googlesource.com/c/platform/external/google-fonts/arvo/+/3423254

Change-Id: Iabdcc6e02820141594b34c75dc292b8041905c9f
Signed-off-by: Automerger Merge Worker <[email protected]>