Reduce amount of distro jobs

Leave distro jobs only for CentOS 9 Stream and Jammy as distro packages
are officially supported for these 2 distros. Jobs are still non-voting
and distro support is in experimental state, so no need to spend more
CI time then needed.

Change-Id: I470a2f0c0fb70fd3158d82db316518b9c0cdcdea

zuul.d/project-templates.yaml

@@ -139,14 +139,10 @@
     check:
       jobs:
         - openstack-ansible-deploy-hosts_distro_lxc-centos-9-stream
-        - openstack-ansible-deploy-hosts_distro_lxc-rockylinux-9
-        - openstack-ansible-deploy-hosts_distro_lxc-debian-bullseye
         - openstack-ansible-deploy-hosts_distro_lxc-ubuntu-jammy
     gate:
       jobs:
         - openstack-ansible-deploy-hosts_distro_lxc-centos-9-stream
-        - openstack-ansible-deploy-hosts_distro_lxc-rockylinux-9
-        - openstack-ansible-deploy-hosts_distro_lxc-debian-bullseye
         - openstack-ansible-deploy-hosts_distro_lxc-ubuntu-jammy
 
 - project-template:
@@ -196,11 +192,11 @@
     check:
       jobs:
         - openstack-ansible-deploy-aio_distro_metal-centos-9-stream
-        - openstack-ansible-deploy-aio_distro_metal-rockylinux-9
         - openstack-ansible-deploy-aio_distro_metal-ubuntu-jammy
     experimental:
       jobs:
         - openstack-ansible-deploy-aio_distro_metal-debian-bullseye
+        - openstack-ansible-deploy-aio_distro_metal-rockylinux-9
 
 - project-template:
     name: openstack-ansible-deploy-nfs-jobs