Add janitors to the OWNERS file am: 0a67248016

Original change: https://android-review.googlesource.com/c/platform/external/error_prone/+/3423689

Change-Id: Ia3f3d4570b18b58325c6c9f30ca2240c71cde758
Signed-off-by: Automerger Merge Worker <[email protected]>