Migrate tempest jobs to Ubuntu Jammy (22.04)

As per 2023.1 cycle testing runtime and community goal[1] we need to migrate
upstream CI/CD to Ubuntu Jammy(22.04). Most of the Tempest jobs will be migrate
automatically once devstack base job start running on Jammy(Depends-On).
As we need to run at least one job on Ubuntu Focal(20.04), I am adding
a new job tempest-full-ubuntu-focal.

Few job like tempest-full-multinode-py3 and plugin sanity job needs to override
the nodeset. multinode job needs to run on Focal till stable/zed and on Jammy
from master(2023.1) onwards. Stable branch jobs testing stable branch needs to
keep running on their supported distro version which is Focal.

Depends-On: https://review.opendev.org/c/openstack/devstack/+/860795
Depends-On: https://review.opendev.org/c/openstack/openstack-zuul-jobs/+/861116

[1] https://governance.openstack.org/tc/goals/selected/migrate-ci-jobs-to-ubuntu-jammy.html

Change-Id: I2e37603b098880b778100613800496b01167b22f
diff --git a/zuul.d/project.yaml b/zuul.d/project.yaml
index 2824677..6412e78 100644
--- a/zuul.d/project.yaml
+++ b/zuul.d/project.yaml
@@ -28,6 +28,8 @@
               - ^.mailmap$
         - tempest-full-py3:
             irrelevant-files: *tempest-irrelevant-files
+        - tempest-full-ubuntu-focal:
+            irrelevant-files: *tempest-irrelevant-files
         - tempest-full-py3-ipv6:
             voting: false
             irrelevant-files: *tempest-irrelevant-files
@@ -136,6 +138,8 @@
         - openstack-tox-py310
         - tempest-slow-py3:
             irrelevant-files: *tempest-irrelevant-files
+        - tempest-full-ubuntu-focal:
+            irrelevant-files: *tempest-irrelevant-files
         - neutron-ovs-grenade-multinode:
             irrelevant-files: *tempest-irrelevant-files
         - tempest-full-py3: