Update cookbook-plugin to latest revision

- Buck: Add license parameter to maven_jar() invocation
- Implement standalone Buck driven build on top of gerrit_plugin()
  bucklet

Change-Id: Ic5a80478c5ddc634fcc276eff0f21d557576b662
diff --git a/plugins/cookbook-plugin b/plugins/cookbook-plugin
index 679a135..fb5e4fd 160000
--- a/plugins/cookbook-plugin
+++ b/plugins/cookbook-plugin
@@ -1 +1 @@
-Subproject commit 679a1356ec20f7570246af77fa4e4c6f10ed3a42
+Subproject commit fb5e4fdab1618c3461587604d5b71d9af6b5936a