Build events-broker module on stable-3.6

Bug: Issue 15831
Change-Id: I1cb7e5b5968745bd2e049cc8d327cc8785bd476a
diff --git a/jenkins/gerrit-bazel-module-events-broker.yaml b/jenkins/gerrit-bazel-module-events-broker.yaml
index bbc09c0..4989264 100644
--- a/jenkins/gerrit-bazel-module-events-broker.yaml
+++ b/jenkins/gerrit-bazel-module-events-broker.yaml
@@ -10,5 +10,6 @@
           branch:
             - master
           gerrit-branch:
+            - stable-3.6
             - stable-3.5
       - 'module-{name}-verifier'