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: I55b1414c1ff14126931fa7770981ca93921d13a1

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