Build cached-refdb plugin master against stable-3.14

Change-Id: I9d047b82204725b297f3eb2a2eb1b56ca47992cb

jenkins/gerrit-bazel-module-cached-refdb.yaml

diff --git a/jenkins/gerrit-bazel-module-cached-refdb.yaml b/jenkins/gerrit-bazel-module-cached-refdb.yaml
index 395ccaf..48daf24 100644
--- a/jenkins/gerrit-bazel-module-cached-refdb.yaml
+++ b/jenkins/gerrit-bazel-module-cached-refdb.yaml
@@ -14,6 +14,7 @@
           branch:
             - master
           gerrit-branch:
+            - stable-3.14
             - stable-3.13
       - 'module-{name}-verifier'
       - 'module-{name}-verifier-gh'