Build events-kafka against gerrit stable-3.6

Bug: Issue 15831
Change-Id: Id07c1fa3c774f9ff1b50a4136c1c9b54dcf91981
diff --git a/jenkins/gerrit-bazel-plugin-events-kafka.yaml b/jenkins/gerrit-bazel-plugin-events-kafka.yaml
index 622c6d7..623e18c 100644
--- a/jenkins/gerrit-bazel-plugin-events-kafka.yaml
+++ b/jenkins/gerrit-bazel-plugin-events-kafka.yaml
@@ -5,10 +5,11 @@
           branch:
             - master
           gerrit-branch:
-            - stable-3.5
+            - stable-3.6
       - 'plugin-{name}-bazel-{branch}':
           branch:
             - master
+            - stable-3.5
             - stable-3.4
             - stable-3.3
       - 'plugin-{name}-verifier'