Add janitors to the OWNERS file am: c145a66f35

Original change: https://android-review.googlesource.com/c/platform/external/puffin/+/3423867

Change-Id: Iee435efec6afc95f27c3893c424db718169d99a9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>