Update OWNERS

Adds new joiners.

Test: n/a
Change-Id: Ia5460a36bb5396ae6d5d72e528241b85167934e9
Merged-In: Ia5460a36bb5396ae6d5d72e528241b85167934e9
(cherry picked from commit ab44ecc8419d6d1ed34b39f66f2e8f72ae515d95)
1 file changed