Build javamelody plugin for Gerrit v3.2

Change-Id: I66c891a48fd099b7bfa5cf732dd8d2a15cc62779
diff --git a/jenkins/gerrit-bazel-plugin-javamelody.yaml b/jenkins/gerrit-bazel-plugin-javamelody.yaml
index b2e9fb0..985272b 100644
--- a/jenkins/gerrit-bazel-plugin-javamelody.yaml
+++ b/jenkins/gerrit-bazel-plugin-javamelody.yaml
@@ -39,4 +39,5 @@
             - master
           gerrit-branch:
             - master
+            - stable-3.2
             - stable-3.1