Upgrade bazlets to latest stable-2.14 to build with 2.14.20 API
Upgrade bazlets to latest stable-2.14 to build with 2.14.20 API

Change-Id: Iab4f7a9969eedb09474b2028f923f76450188b09

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