Add janitors to the OWNERS file am: 29343e2d9e

Original change: https://android-review.googlesource.com/c/platform/external/bazelbuild-rules_python/+/3423345

Change-Id: Ic175920b4d6ff81f101ea69c96b971b370b6f9fb
Signed-off-by: Automerger Merge Worker <[email protected]>