CI: Make bifrost-upgrade-keystone-centos-10 voting

This is made possible by the backport of CentOS Stream 10 support [1].

[1] https://review.opendev.org/c/openstack/bifrost/+/960619

Change-Id: Ibaa715252c1c7902c0bf2cc26efaca446a937074
Signed-off-by: Pierre Riteau <[email protected]>

Author: priteau

zuul.d/project.yaml

@@ -22,6 +22,7 @@
         - bifrost-integration-inspector-centos-10
         - bifrost-integration-inspector-ubuntu-jammy
         - bifrost-upgrade-ubuntu-jammy
+        - bifrost-upgrade-keystone-centos-10
         - bifrost-upgrade-keystone-ubuntu-noble
         # Non-voting jobs
         - bifrost-slurp-upgrade-ubuntu-jammy:
@@ -32,10 +33,6 @@
             voting: false
         - bifrost-integration-dibipa-debian-ubuntu-jammy:
             voting: false
-        # TODO(priteau): Can be made voting by backporting
-        # https://review.opendev.org/c/openstack/bifrost/+/958853
-        - bifrost-upgrade-keystone-centos-10:
-            voting: false
         - bifrost-cli-ubuntu-jammy:
             voting: false
         - bifrost-collections-src:
@@ -80,6 +77,7 @@
         - bifrost-integration-inspector-centos-10
         - bifrost-integration-inspector-ubuntu-jammy
         - bifrost-upgrade-ubuntu-jammy
+        - bifrost-upgrade-keystone-centos-10
         - bifrost-upgrade-keystone-ubuntu-noble
     experimental:
       jobs: