Update bazlets to latest revision on master

- tools/pkg_war.bzl: Use .to_list() on web_xml.files

Change-Id: I7235ccfcbc348506bae2ce9825e2429992108fec

WORKSPACE

diff --git a/WORKSPACE b/WORKSPACE
index 6ee0185..d77476f 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -16,7 +16,7 @@
 load("//tools:bazlets.bzl", "load_bazlets")
 
 load_bazlets(
-    commit = "2c9d995f712f6531e45756f80431b460c6183f8d",
+    commit = "953edc78cf3b4220402aa05f1d5ddcadd399591f",
     # local_path = "/home/<user>/projects/bazlets",
 )