TripleO: Replace undercloud job by standalone job

Heat in undercloud was replaced by Ephemeral heat and we no longer run
puppet to set up heat configurations.

Because there is no heat tempest job enabled in TripleO repos, we use
the common scenario job to validate deployment status. This will be
updated when any appropriate test is enabled in TripleO.

Change-Id: Iee8b99c2bee7f37fd1cdb05c42b8f7e608325a4b

.zuul.yaml

@@ -4,5 +4,25 @@
       - puppet-openstack-module-unit-jobs
       - puppet-openstack-integration-jobs-scenario003
       - puppet-openstack-litmus-jobs
-      - tripleo-puppet-undercloud
       - release-notes-jobs-python3
+    check:
+      jobs:
+        - puppet-heat-tripleo-standalone
+    gate:
+      jobs:
+        - puppet-heat-tripleo-standalone
+
+- job:
+    name: puppet-heat-tripleo-standalone
+    parent: tripleo-puppet-ci-centos-9-standalone
+    description: |
+      TripleO standalone Job running Heat specific Tempest tests.
+    vars:
+      build_container_images: true
+      featureset_override:
+        run_tempest: false
+        # NOTE(tkajinam): This should be fixed once any heat tempest test is
+        #                 enabled in TripleO repo.
+        tempest_test_whitelist:
+          - 'tempest.scenario.test_server_basic_ops'
+        use_os_tempest: true