Update bazlets to latest stable-2.14 to use API version 2.14.6

Change-Id: Ibc6d197a9f5390e299c86b6641ce9f56b36c7f1e
diff --git a/WORKSPACE b/WORKSPACE
index 6098639..b4602ea 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -3,7 +3,7 @@
 load("//:bazlets.bzl", "load_bazlets")
 
 load_bazlets(
-    commit = "9a31fb6c61d83a65f8ec86c0bc3f554b04702dba",
+    commit = "21e71dc9abb42f5ac80c51d2df2a374c3414b9d2",
     #    local_path = "/home/<user>/projects/bazlets",
 )