Upgrade bazlets to latest stable-2.16 to build with 2.16.5 API
Upgrade bazlets to latest stable-2.16 to build with 2.16.5 API

Change-Id: Ifae1e4737dbdd3a496d6791be035e73b63a16e67

GerritCodeReview/plugins_owners,GerritCodeReview/plugins_owners