Upgrade bazlets to latest master

To use the now mandatory https protocol for MAVEN_CENTRAL.

Bug: Issue 12170
Change-Id: I7fa3b5b7f4b552b7c9c98a9dca2dc8423778b939

WORKSPACE

diff --git a/WORKSPACE b/WORKSPACE
index 4c46a96..980e071 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -3,7 +3,7 @@
 load("//:bazlets.bzl", "load_bazlets")
 
 load_bazlets(
-    commit = "8c8df720486ebe0b60adccd0eceb1c8122edaf58",
+    commit = "fbe2b2fd07c95d752dced6b8624c9d5a08e8c6c6",
     #local_path = "/home/<user>/projects/bazlets",
 )