Upgrade kotlinpoet to 1.16.0 am: af7bd99cda

Original change: https://android-review.googlesource.com/c/platform/external/kotlinpoet/+/2967683

Change-Id: I5922082e30e41d299676b15095b223a761ca1b40
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>