Add janitors to the OWNERS file am: fdc124265b

Original change: https://android-review.googlesource.com/c/platform/external/python/uritemplates/+/3423986

Change-Id: I553cde43ddfb74cfd6322399cd06a33864531013
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>