Add bazel build for the heartbeat plugin

Build the plugin for all supported branches: stable-2.14, stable-2.15,
stable-2.16, and master.

Change-Id: Id0fffd00e044549048c30d504e4aa8a60a9811eb
diff --git a/jenkins/gerrit-bazel-plugin-heartbeat.yaml b/jenkins/gerrit-bazel-plugin-heartbeat.yaml
new file mode 100644
index 0000000..c90924e
--- /dev/null
+++ b/jenkins/gerrit-bazel-plugin-heartbeat.yaml
@@ -0,0 +1,9 @@
+- project:
+    name: heartbeat
+    jobs:
+      - 'plugin-{name}-bazel-{branch}':
+          branch:
+            - master
+            - stable-2.16
+            - stable-2.15
+            - stable-2.14