Upgrade bazlets to latest stable-2.16 to build with 2.16.11.1 API
Upgrade bazlets to latest stable-2.16 to build with 2.16.11.1 API

Change-Id: I368123793bd78f7353d117c32f6a705397c662f0

GerritCodeReview/plugins_delete-project,GerritCodeReview/plugins_delete-project,GerritCodeReview/plugins_delete-project,GerritCodeReview/plugins_delete-project