irronicclient absent when change virt-type to ironic

[Zhanglei Mao]

During my ironic testing on jammy according
https://docs.openstack.org/charm-guide/latest/admin/compute/ironic.html

  nova-ironic:
    charm: nova-compute
    channel: 2023.2/stable
    num_units: 1
    options:
      virt-type: ironic # ironic use nova api like "openstack server create"
    to:
    - 2

The log of this unit would complain

2024-03-20 13:02:53.153 793330 ERROR nova.virt.driver [None req-fefb5acd-eb1f-43de-b370-c7a74c82411e - - - - - -] Unable to load the virtualization driver: ModuleNotFoundError: No module named 'ironicclient’

Manually install it can be fixing.
 juju ssh nova-ironic/0 -- sudo apt install python3-ironicclient