Disable n-d-r tempest scenario jobs for 2023.1

There is a failure trying to create the unmaintained/2023.1
n-d-r branch due to an os-ken issue, disable the scenario
jobs until we can figure out a fix. See
https://review.opendev.org/c/openstack/neutron-dynamic-routing/+/935090
for more details.

Change-Id: I56eff93a8e554bee74fbfc3061a51df155628e80
diff --git a/zuul.d/2023_1_jobs.yaml b/zuul.d/2023_1_jobs.yaml
index 83d9dcb..8b6a581 100644
--- a/zuul.d/2023_1_jobs.yaml
+++ b/zuul.d/2023_1_jobs.yaml
@@ -282,6 +282,12 @@
     vars:
       devstack_localrc:
         NEUTRON_DEPLOY_MOD_WSGI: false
+      # NOTE(haleyb): Scenario tests are disabled since they are failing trying
+      # to create the unmaintained/2023.1 branch due to an os-ken issue. See
+      # https://review.opendev.org/c/openstack/neutron-dynamic-routing/+/935090
+      # for more details.
+      tempest_exclude_regex: "\
+          (^neutron_tempest_plugin.neutron_dynamic_routing.scenario)"
 
 - job:
     name: neutron-tempest-plugin-fwaas-2023-1