Build go-import plugin on own 3.2 branch

Change-Id: I85af7a0c6a35483dd6d5c5a07e2dbd0b4653cb4a
diff --git a/jenkins/gerrit-bazel-plugin-go-import.yaml b/jenkins/gerrit-bazel-plugin-go-import.yaml
index d301051..869cfeb 100644
--- a/jenkins/gerrit-bazel-plugin-go-import.yaml
+++ b/jenkins/gerrit-bazel-plugin-go-import.yaml
@@ -6,8 +6,8 @@
             - master
           gerrit-branch:
             - master
-            - stable-3.2
       - 'plugin-{name}-bazel-{branch}':
           branch:
+            - stable-3.2
             - stable-3.1
             - stable-2.16