Fix execution of kayobe overcloud deprovision

With `kayobe overcloud deprovision`, the task `Get PXE MAC address` runs
the command `openstack baremetal port list` which fails with:

    Traceback (most recent call last):
      File "/var/lib/kolla/venv/bin/openstack", line 5, in <module>
        from openstackclient.shell import main
    ModuleNotFoundError: No module named 'openstackclient'

Fix by using the `baremetal port list` command instead. This does not
appear to affect 2024.2 and earlier.

Change-Id: If1157a56110e26c3668bd54cd0293a9d3f936fc6

Author: priteau

ansible/overcloud-deprovision.yml

@@ -60,7 +60,7 @@
         export OS_BAREMETAL_API_VERSION=1.34 &&
         export BIFROST_INVENTORY_SOURCE=ironic &&
         export BIFROST_NODE_NAMES="{{ inventory_hostname }}" &&
-        openstack baremetal port list --node {{ inventory_hostname }} --fields address -f value'
+        baremetal port list --node {{ inventory_hostname }} --fields address -f value'
       register: pxe_result
       delegate_to: "{{ seed_host }}"
       become: "{{ container_engine == 'podman' }}"