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

Change-Id: I295c553fc011b9d8665a2c368961957fa542474b

WORKSPACE

diff --git a/WORKSPACE b/WORKSPACE
index eae2d98..4aa8748 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -3,7 +3,7 @@
 load("//:bazlets.bzl", "load_bazlets")
 
 load_bazlets(
-    commit = "c15e64db2a87c0453427ff45f79d1ed3899b5d92",
+    commit = "b084bd74743f4303971a2a057bcea4f3352ddf4e",
     #local_path = "/home/<user>/projects/bazlets",
 )