openstack-integrator doesn't support loadbalancer interface for loadbalancer-internal,external

In the following commit, using interface=public-address is marked as discouraged.

https://github.com/charmed-kubernetes/charm-kubernetes-control-plane/commit/a69a6c19d42feed0488789d3dd334f3a6bb52622

[metadata.yaml - k8s-control-plane]
  loadbalancer:
    # Use of this relation is strongly discouraged in favor of the more
    # explicit loadbalancer-internal / loadbalancer-external relations.
    interface: public-address
...
  loadbalancer-internal:
    # Indicates that the LB should not be public and should use internal
    # networks if available. Intended for control plane and other internal use.
    interface: loadbalancer
  loadbalancer-external:
    # Indicates that the LB should be public facing. Intended for clients which
    # must reach the API server via external networks.
    interface: loadbalancer

However, openstack-integrator seems missing a metadata and implementation to support those two new relations at this point.