Add janitors to the OWNERS file am: f345aef85a

Original change: https://android-review.googlesource.com/c/platform/external/deqp-deps/SPIRV-Tools/+/3423685

Change-Id: Ib5e6d306b5528e063ff2c336ed7924a9f38f998d
Signed-off-by: Automerger Merge Worker <[email protected]>