Build analytics plugin on stable-3.4 branch

Change-Id: Ie83ab05a9506cf1a296f9e5ab6d9bcb3eeac3ee2
diff --git a/jenkins/gerrit-sbt-plugin-analytics.yaml b/jenkins/gerrit-sbt-plugin-analytics.yaml
index dc5ba82..b571912 100644
--- a/jenkins/gerrit-sbt-plugin-analytics.yaml
+++ b/jenkins/gerrit-sbt-plugin-analytics.yaml
@@ -4,6 +4,7 @@
       - 'plugin-{name}-sbt-{branch}':
           branch:
             - master
+            - stable-3.4
             - stable-3.3
             - stable-3.2
             - stable-3.1