Update events-broker to v3.2.0-rc4

Change-Id: Ic0ec025267be3bf2a80c92c341e53b189ad1234d
diff --git a/external_plugin_deps.bzl b/external_plugin_deps.bzl
index 18e407f..30bfbc1 100644
--- a/external_plugin_deps.bzl
+++ b/external_plugin_deps.bzl
@@ -15,6 +15,6 @@
 
     maven_jar(
         name = "events-broker",
-        artifact = "com.gerritforge:events-broker:3.1.4",
-        sha1 = "5672908dde0bd02cabc95efe34a8d8507d44b6ac",
+        artifact = "com.gerritforge:events-broker:3.2.0-rc4",
+        sha1 = "53e3f862ac2c2196dba716756ac9586f4b63af47",
     )