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

Change-Id: Id627f94ef340762a81475a49a01188c6e2af43b6
diff --git a/WORKSPACE b/WORKSPACE
index 3e89ee4..322f63e 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",
 )