Upgrade bazlets to latest master to build with 3.2.2 API

Change-Id: I33af768e3cdf00cd34255ee1d71c9da803513f94
diff --git a/WORKSPACE b/WORKSPACE
index f70d01a..67f7e9e 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -3,7 +3,7 @@
 load("//:bazlets.bzl", "load_bazlets")
 
 load_bazlets(
-    commit = "fbe2b2fd07c95d752dced6b8624c9d5a08e8c6c6",
+    commit = "4a27255dff75eadc98b86391806be13e030e6ff3",
     #local_path = "/home/<user>/projects/bazlets",
 )