:Update gate job for wallaby

Update  "openstack-python3-victoria-jobs" to  "openstack-python3-wallaby-jobs".

Change-Id: I0e9e30093f39230859fbfa415fd9fba00ff03e79

.zuul.yaml

@@ -3,7 +3,8 @@
       - check-requirements
       - horizon-non-primary-django-jobs
       - openstack-lower-constraints-jobs
-      - openstack-python3-victoria-jobs
+      - openstack-python3-wallaby-jobs
+
     check:
       jobs:
         - freezer-web-ui
@@ -30,3 +31,5 @@
         freezer-web-ui: https://opendev.org/openstack/freezer-web-ui
       devstack_services:
         horizon: true
+      devstack_localrc:
+        FREEZER_BACKEND: 'sqlalchemy'