Build elasticsearch module on stable-3.13

Change-Id: I60ea9a8e5fd9af7f9aac2100c1d41c02e7f99f19
diff --git a/jenkins/gerrit-bazel-module-index-elasticsearch.yaml b/jenkins/gerrit-bazel-module-index-elasticsearch.yaml
index 8244d35..49a1f3f 100644
--- a/jenkins/gerrit-bazel-module-index-elasticsearch.yaml
+++ b/jenkins/gerrit-bazel-module-index-elasticsearch.yaml
@@ -4,4 +4,9 @@
       - 'module-{name}-bazel-{branch}':
           branch:
             - master
+      - 'module-{name}-bazel-{branch}-{gerrit-branch}':
+          branch:
+            - master
+          gerrit-branch:
+            - stable-3.13
       - 'module-{name}-verifier'