Require gerrit-bsl-license for building aws-dynamodb-refdb plugin

Change-Id: Id3306df94a7e22c61d4c0919b85d069614b87654

jenkins/gerrit-bazel-plugin-aws-dynamodb-refdb.yaml

diff --git a/jenkins/gerrit-bazel-plugin-aws-dynamodb-refdb.yaml b/jenkins/gerrit-bazel-plugin-aws-dynamodb-refdb.yaml
index b73518c..7e9f0f7 100644
--- a/jenkins/gerrit-bazel-plugin-aws-dynamodb-refdb.yaml
+++ b/jenkins/gerrit-bazel-plugin-aws-dynamodb-refdb.yaml
@@ -9,8 +9,11 @@
             - stable-3.12
       - 'plugin-{name}-gh-bazel-{branch}':
           branch:
-            - master
             - stable-3.13
+      - 'plugin-{name}-gh-bazel-{branch}':
+          extra-gh-repos: 'gerrit-bsl-license'
+          branch:
+            - master
             - stable-3.14
       - 'plugin-{name}-verifier'
       - 'plugin-{name}-verifier-gh'