Replace centos-8.x jobs with centos-8-stream

CentOS-8.x is EOL in end of 2021. It has some broken repo causing
failures. This patch will drop centos-8 jobs and replace with new
centos-8-stream.

Set all OVN jobs to non voting to merge required patches to fix OVN.

Change-Id: I89bcf25dfad355c52f1f7d8efee16b20c584da53
(cherry picked from commit e2f22f7b794698892a640281418765dc8597403d)

zuul.d/jobs.yaml

@@ -41,11 +41,21 @@
 
 # CentOS 8
 - job:
-    name: openstack-ansible-deploy-aio_ovs_lxc-centos-8
+    name: openstack-ansible-deploy-aio_ovs_lxc-centos-8-stream
     parent: openstack-ansible-deploy-aio
-    nodeset: centos-8
+    nodeset: centos-8-stream
 
 - job:
-    name: openstack-ansible-deploy-aio_metal_ovs-centos-8
+    name: openstack-ansible-deploy-aio_metal_ovs-centos-8-stream
     parent: openstack-ansible-deploy-aio
-    nodeset: centos-8
+    nodeset: centos-8-stream
+
+- job:
+    name: openstack-ansible-deploy-aio_ovn_lxc-centos-8-stream
+    parent: openstack-ansible-deploy-aio
+    nodeset: centos-8-stream
+
+- job:
+    name: openstack-ansible-deploy-aio_ovn_metal-centos-8-stream
+    parent: openstack-ansible-deploy-aio
+    nodeset: centos-8-stream

zuul.d/project.yaml

@@ -26,16 +26,28 @@
         - openstack-ansible-deploy-aio_metal_calico-ubuntu-bionic
         - openstack-ansible-deploy-aio_ovs_lxc-ubuntu-focal
         - openstack-ansible-deploy-aio_metal_ovs-ubuntu-focal
-        - openstack-ansible-deploy-aio_ovs_lxc-centos-8
-        - openstack-ansible-deploy-aio_metal_ovs-centos-8
-        - openstack-ansible-deploy-aio_ovn_lxc-ubuntu-focal2
-        - openstack-ansible-deploy-aio_metal_ovn-ubuntu-focal2
+        - openstack-ansible-deploy-aio_ovs_lxc-centos-8-stream
+        - openstack-ansible-deploy-aio_metal_ovs-centos-8-stream
+        - openstack-ansible-deploy-aio_ovn_lxc-centos-8-stream:
+            voting: false
+        - openstack-ansible-deploy-aio_ovn_metal-centos-8-stream:
+            voting: false
+        - openstack-ansible-deploy-aio_ovn_lxc-ubuntu-focal2:
+            voting: false
+        - openstack-ansible-deploy-aio_metal_ovn-ubuntu-focal2:
+             voting: false
     gate:
       jobs:
         - openstack-ansible-deploy-aio_metal_calico-ubuntu-bionic
         - openstack-ansible-deploy-aio_ovs_lxc-ubuntu-focal
         - openstack-ansible-deploy-aio_metal_ovs-ubuntu-focal
-        - openstack-ansible-deploy-aio_ovs_lxc-centos-8
-        - openstack-ansible-deploy-aio_metal_ovs-centos-8
-        - openstack-ansible-deploy-aio_ovn_lxc-ubuntu-focal2
-        - openstack-ansible-deploy-aio_metal_ovn-ubuntu-focal2
+        - openstack-ansible-deploy-aio_ovs_lxc-centos-8-stream
+        - openstack-ansible-deploy-aio_metal_ovs-centos-8-stream
+        - openstack-ansible-deploy-aio_ovn_lxc-centos-8-stream:
+            voting: false
+        - openstack-ansible-deploy-aio_ovn_metal-centos-8-stream:
+            voting: false
+        - openstack-ansible-deploy-aio_ovn_lxc-ubuntu-focal2:
+            voting: false
+        - openstack-ansible-deploy-aio_metal_ovn-ubuntu-focal2:
+             voting: false