Replace LXB check with OVS

With neutron removing the lxb driver from their codebase [1],
we have no other choice but replace LXB with OVS test scenario

As OVS DB socket is writable only by root user, we have to
switch kuryr-libnetwork to be executed as root as well.

Depends-On: https://review.opendev.org/c/openstack/openstack-ansible-apt_package_pinning/+/948705
Change-Id: I8f953c89a704bd9e17d369befca6cf2c9d7df51d

defaults/main.yml

@@ -77,8 +77,8 @@ zun_log_dir: "/var/log/zun"
 zun_lock_dir: "{{ openstack_lock_dir | default('/run/lock') }}"
 
 ## Kuryr user information
-zun_kuryr_system_user_name: kuryr
-zun_kuryr_system_group_name: kuryr
+zun_kuryr_system_user_name: root
+zun_kuryr_system_group_name: root
 zun_kuryr_system_shell: /bin/false
 zun_kuryr_system_comment: kuryr system user
 zun_kuryr_system_home_folder: "/var/lib/{{ zun_kuryr_system_user_name }}"

zuul.d/project.yaml

@@ -21,9 +21,9 @@
       - build-release-notes-jobs-python3
     check:
       jobs:
-        - openstack-ansible-deploy-aio_lxb_metal-centos-9-stream
-        - openstack-ansible-deploy-aio_lxb_metal-ubuntu-jammy
+        - openstack-ansible-deploy-aio_ovs_lxc-centos-9-stream:
+            voting: false
+        - openstack-ansible-deploy-aio_metal_ovs-ubuntu-jammy
     gate:
       jobs:
-        - openstack-ansible-deploy-aio_lxb_metal-centos-9-stream
-        - openstack-ansible-deploy-aio_lxb_metal-ubuntu-jammy
+        - openstack-ansible-deploy-aio_metal_ovs-ubuntu-jammy