Run openstack-tox jobs on centos-stream-9

nmstate is not available on ubuntu. In order to test the
changes, it needs to run on CS9.

Signed-off-by: Chandan Kumar <chkumar@redhat.com>
Change-Id: Ie6dcb966a7df154ce3225488649ca9c8064ea2d6
(cherry picked from commit 928eacc31c)

bindep.txt

@@ -0,0 +1,9 @@
+# This is a cross-platform list tracking distribution packages needed for
+# install and tests;
+# see https://docs.openstack.org/infra/bindep/ for additional information.
+
+ethtool
+nmstate            [platform:rpm]
+NetworkManager-ovs [platform:rpm]
+python3-libnmstate [platform:rpm]
+nmstate-libs       [platform:rpm]

zuul.d/layout.yaml

@@ -3,12 +3,25 @@
     queue: tripleo
     templates:
       - check-requirements
-      - openstack-cover-jobs
-      - openstack-python3-zed-jobs
       - publish-openstack-docs-pti
       - release-notes-jobs-python3
       - tripleo-multinode-container-minimal-pipeline
       - tripleo-upgrades-zed-pipeline
+    check:
+      jobs:
+        - tripleo-ci-centos-9-content-provider:
+            dependencies:
+              - openstack-tox-pep8
+        - openstack-tox-pep8: &nodes
+            nodeset: centos-9-stream
+        - openstack-tox-py39: *nodes
+        - openstack-tox-docs: *nodes
+        - openstack-tox-cover: *nodes
     gate:
       jobs:
-        - openstack-tox-pep8
+        - openstack-tox-pep8: *nodes
+        - openstack-tox-py39: *nodes
+        - openstack-tox-docs: *nodes
+    post:
+      jobs:
+        - publish-openstack-python-branch-tarball