Upgrade bazlets to latest stable-2.14 to build with 2.14.15 API
Upgrade bazlets to latest stable-2.14 to build with 2.14.15 API

Change-Id: I3f3e13c0f90f67333128364fc4886a62f2302422

GerritCodeReview/plugins_admin-console,GerritCodeReview/plugins_admin-console,GerritCodeReview/plugins_admin-console