Update bazlets to latest head of master

Change-Id: Ia920f550ec20b9d62bdcedb44b49233494b175fa
diff --git a/WORKSPACE b/WORKSPACE
index 30cab56..0a6842f 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -3,7 +3,7 @@
 load("//:bazlets.bzl", "load_bazlets")
 
 load_bazlets(
-    commit = "74b31c8fae3a92c6c3e46a046b57cf1d8a6549d4",
+    commit = "763b6626d7e8de51c20dc144b691a049b3c90262",
     #    local_path = "/home/<user>/projects/bazlets",
 )