Use events-broker version 3.3.1

Feature: Issue 13429
Change-Id: Id64b2080f0b7bd5bc6bb57b74d4143f01855077b

external_plugin_deps.bzl

diff --git a/external_plugin_deps.bzl b/external_plugin_deps.bzl
index 998d3b9..a19b0a8 100644
--- a/external_plugin_deps.bzl
+++ b/external_plugin_deps.bzl
@@ -9,6 +9,6 @@
 
     maven_jar(
         name = "events-broker",
-        artifact = "com.gerritforge:events-broker:3.2.0-rc4",
-        sha1 = "53e3f862ac2c2196dba716756ac9586f4b63af47",
+        artifact = "com.gerritforge:events-broker:3.3.1",
+        sha1 = "90775e671946b20e52be3a11277d1ed33973d66e",
     )