Bazel: Update to latest bazlets version

Change-Id: I568d7c8a62e142873c57b33cbbc110b41d69617a
diff --git a/WORKSPACE b/WORKSPACE
index 0150c9f..c12d529 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -3,7 +3,7 @@
 load("//:bazlets.bzl", "load_bazlets")
 
 load_bazlets(
-    commit = "42244973783cd0b14c5dc24014a97c4148488d6a",
+    commit = "e15ad03897f040435d6c5e808b697b1125b964c1",
     # local_path = "/home/<user>/projects/bazlets",
 )