Merge "Add OWNERS to Launcher3/go" am: 278edf2938 am: dc71c0178a am: ee9a99a6a8

Original change: https://android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/1653167

Change-Id: I227d47f2ba807e4b5de60fba8dbad60f279bdba4