Upgrade bazlets to get plugin API 2.14

Change-Id: I28daa5343870a994228f935f164aaa88e87b9e2e
diff --git a/WORKSPACE b/WORKSPACE
index 7383047..d424cf9 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -3,7 +3,7 @@
 load("//:bazlets.bzl", "load_bazlets")
 
 load_bazlets(
-    commit = "8a4cbdc993f41fcfe7290e7d1007cfedf8d87c18",
+    commit = "8e0bb37977452a66141833370430f307e959acfb",
     #    local_path = "/home/<user>/projects/bazlets",
 )