Upgrade bazlets to latest stable-2.16 to build with 2.16.10 API

Change-Id: I7f752a8ca062d4df3bb30cb4ecaa115567f2bb69
diff --git a/WORKSPACE b/WORKSPACE
index 6411a68..c7e88e2 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -3,7 +3,7 @@
 load("//:bazlets.bzl", "load_bazlets")
 
 load_bazlets(
-    commit = "a3486fbde46f3b3eabcbd9c52c227625f414e58f",
+    commit = "5514e42e08d7852d226849e391857d7f139f7ed9",
     #local_path = "/home/<user>/projects/bazlets",
 )