Add test for default DNS zone per tenant

Related-Bug: #1843218

Depends-On: https://review.opendev.org/#/c/686343/
Change-Id: If36aa3e99286f4f91ea488609aee0589656881da
diff --git a/zuul.d/master_jobs.yaml b/zuul.d/master_jobs.yaml
index f170eb8..005c737 100644
--- a/zuul.d/master_jobs.yaml
+++ b/zuul.d/master_jobs.yaml
@@ -16,6 +16,7 @@
         - dhcp_agent_scheduler
         - dns-domain-ports
         - dns-integration
+        - dns-integration-domain-keywords
         - empty-string-filtering
         - expose-port-forwarding-in-fip
         - expose-l3-conntrack-helper