Upgrade bazlets to latest stable-3.0 to build with 3.0.12 API

Change-Id: Ia13584d2c8897f09051ead8e3ea0e7041a7a7402

WORKSPACE

diff --git a/WORKSPACE b/WORKSPACE
index 371d120..0d0aacd 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -3,7 +3,7 @@
 load("//:bazlets.bzl", "load_bazlets")
 
 load_bazlets(
-    commit = "7472a1104a37d514799100d6556445836e8efe4c",
+    commit = "6d2b8f41ed34dad925b767399d1e4be378abb029",
     #local_path = "/home/<user>/projects/bazlets",
 )