Add janitors to the OWNERS file am: f9e0838878

Original change: https://android-review.googlesource.com/c/platform/external/deqp-deps/SPIRV-Headers/+/3423551

Change-Id: Ie15ca8787e0a215d23f00f09ce9e8500b69847b7
Signed-off-by: Automerger Merge Worker <[email protected]>