Fix bazlets SHA1

Pointed to a commit that didn't exist and was supposed to be 3.2.0.

Change-Id: I7202b3a9d728d6597010e47d7b708235b67f01a5

WORKSPACE

diff --git a/WORKSPACE b/WORKSPACE
index 0a7a057..5c418ba 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -3,7 +3,7 @@
 load("//:bazlets.bzl", "load_bazlets")
 
 load_bazlets(
-    commit = "2756d53cdd3fff3af738df3c46c90625e05c3681",
+    commit = "81e56222d9cec5fc46b9a60d1948833406afda56",
     #local_path = "/home/<user>/projects/bazlets",
 )