Add centos-9 jobs for wallaby zuul layout

Adds puppet-swift-tripleo-centos-9-standalone definition
and into the check zuul layout. This is added as non voting
as puppet openstack will not support c9 on wallaby.
See the topic branch [1] for related reviews and [2] for context.
[1] https://review.opendev.org/q/topic:c9_wallaby_gates
[2] http://lists.openstack.org/pipermail/openstack-discuss/2022-February/027403.html
Depends-On: https://review.opendev.org/c/openstack/puppet-openstack-integration/+/831206

Change-Id: Ida9120984b6f3548d84547cd0e65324538ef489c

.zuul.yaml

@@ -8,6 +8,7 @@
     check:
       jobs:
         - puppet-swift-tripleo-standalone
+        - puppet-swift-tripleo-centos-9-standalone
     gate:
       jobs:
         - puppet-swift-tripleo-standalone
@@ -17,10 +18,18 @@
     parent: tripleo-puppet-ci-centos-8-standalone
     description: |
       TripleO standalone Job running Object Storage specific Tempest tests.
-    vars:
+    vars: &standalone_vars
       build_container_images: true
       featureset_override:
         run_tempest: false
         tempest_test_whitelist:
           - 'tempest.api.object_storage.test_object_services.ObjectTest'
         use_os_tempest: true
+
+- job:
+    name: puppet-swift-tripleo-centos-9-standalone
+    parent: tripleo-puppet-ci-centos-9-standalone
+    description: |
+      TripleO standalone Job running Object Storage specific Tempest tests.
+    voting: false
+    vars: *standalone_vars