Move to Xena testing runtime template

Change-Id: Ifa54e4b7b809ce2b9c1652557aa50181a5639307
diff --git a/.zuul.yaml b/.zuul.yaml
index 5102a8c..a9fd103 100644
--- a/.zuul.yaml
+++ b/.zuul.yaml
@@ -211,7 +211,7 @@
 - project:
     templates:
       - openstack-cover-jobs
-      - openstack-python3-victoria-jobs
+      - openstack-python3-xena-jobs
       - check-requirements
       - publish-openstack-docs-pti
       - release-notes-jobs-python3