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

Change-Id: Id9ce7c9c0229a3935a4453c28efcac98edd9fb1e
diff --git a/WORKSPACE b/WORKSPACE
index 7d04f90..04c74f7 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",
 )