Upgrade bazlets to latest master to build with 3.0.0-rc3 API

Change-Id: Ie9408e032b49ecb32627c505d59e9941a732dd5d

WORKSPACE

diff --git a/WORKSPACE b/WORKSPACE
index ae7f809..51274d3 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -3,7 +3,7 @@
 load("//:bazlets.bzl", "load_bazlets")
 
 load_bazlets(
-    commit = "3bab941eed2637378f9e808b05778325eed2a19b",
+    commit = "298b25cf8c5ef0f27caa215cbc128e530f68d9f4",
     #local_path = "/home/<user>/projects/bazlets",
 )