Upgrade bazlets to latest stable-2.16 to build with 2.16.13 API
Upgrade bazlets to latest stable-2.16 to build with 2.16.13 API

Change-Id: Ib378315a93969b1de605e2d9cc8b2758f37920e4

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