Build replication-status against 3.4 branch

Change-Id: I6a2a7fdf7a9c56056f242b4fb1886911c4735552
diff --git a/jenkins/gerrit-bazel-plugin-replication-status.yaml b/jenkins/gerrit-bazel-plugin-replication-status.yaml
index fb38d10..2b4772f 100644
--- a/jenkins/gerrit-bazel-plugin-replication-status.yaml
+++ b/jenkins/gerrit-bazel-plugin-replication-status.yaml
@@ -8,5 +8,7 @@
             - stable-3.7
             - stable-3.6
             - stable-3.5
+      - 'plugin-{name}-bazel-{branch}':
+          branch:
             - stable-3.4
       - 'plugin-{name}-verifier'