CI: Fix kayobe-tox-molecule job

We were still using stream8 images which cannot install packages
anymore, due to the end of life of CentOS Stream 8.

Change-Id: I8604c342e4dbc41dd5bee0f28a92c3c3cd37d631

ansible/roles/kolla-openstack/molecule/default/molecule.yml

@@ -8,8 +8,8 @@ driver:
 lint: |
   yamllint .
 platforms:
-  - name: centos-stream8
-    image: quay.io/centos/centos:stream8
+  - name: centos-stream9
+    image: quay.io/centos/centos:stream9
     network_mode: host
 provisioner:
   name: ansible

ansible/roles/kolla-openstack/molecule/enable-everything/molecule.yml

@@ -8,8 +8,8 @@ driver:
 lint: |
   yamllint .
 platforms:
-  - name: centos-stream8
-    image: quay.io/centos/centos:stream8
+  - name: centos-stream9
+    image: quay.io/centos/centos:stream9
     network_mode: host
 provisioner:
   name: ansible