Merge "Adds mContactsDeleteNotFoundCount to ContactsIndexerUpdateStats" into udc-mainline-prod am: f98db5ae60

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/AppSearch/+/24102092

Change-Id: I00d0085bb129b4a010bc650eab07ae62a24d71fa
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>