Build audit-sl4j plugin master against stable-3.14

Change-Id: I1169eda0e310beaa800ecc5a8cdcf2fd2311d4e2

jenkins/gerrit-bazel-plugin-audit-sl4j.yaml

diff --git a/jenkins/gerrit-bazel-plugin-audit-sl4j.yaml b/jenkins/gerrit-bazel-plugin-audit-sl4j.yaml
index 8745afd..6ea39c2 100644
--- a/jenkins/gerrit-bazel-plugin-audit-sl4j.yaml
+++ b/jenkins/gerrit-bazel-plugin-audit-sl4j.yaml
@@ -10,6 +10,7 @@
           branch:
             - master
           gerrit-branch:
+            - stable-3.14
             - stable-3.13
       - 'plugin-{name}-bazel-{branch}-{gerrit-branch}':
           branch: