Build admin-console master against Gerrit 3.7

Change-Id: Ied2f41fc1ff01e2dcf011be83d9327411af67449
diff --git a/jenkins/gerrit-bazel-plugin-admin-console.yaml b/jenkins/gerrit-bazel-plugin-admin-console.yaml
index 4687895..4360c2c 100644
--- a/jenkins/gerrit-bazel-plugin-admin-console.yaml
+++ b/jenkins/gerrit-bazel-plugin-admin-console.yaml
@@ -5,6 +5,7 @@
           branch:
             - master
           gerrit-branch:
+            - stable-3.7
             - stable-3.6
             - stable-3.5
             - stable-3.4