Upgrade bazlets to latest stable-3.0 to build with 3.0.8 API

Change-Id: I69faedaadd78d37bc148187d68df2ea9a489c67f
diff --git a/WORKSPACE b/WORKSPACE
index b9b134c..a4eaee8 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -3,7 +3,7 @@
 load("//:bazlets.bzl", "load_bazlets")
 
 load_bazlets(
-    commit = "4909dd878ded009edc140319246a2e0681763743",
+    commit = "97eef86854b0fb68b9287831f3075b6f6218ff41",
     #local_path = "/home/<user>/projects/bazlets",
 )