unit.neutron-gateway/0.install E: Unable to locate package python-six

python-six was dropped in Kinetic

$ rmadison python-six
 python-six | 1.5.2-1 | trusty | all
 python-six | 1.5.2-1ubuntu1.1 | trusty-security | all
 python-six | 1.5.2-1ubuntu1.1 | trusty-updates | all
 python-six | 1.10.0-3 | xenial | all
 python-six | 1.11.0-2 | bionic | all
 python-six | 1.14.0-2 | focal/universe | all
 python-six | 1.16.0-3ubuntu1 | jammy/universe | all

Traceback (most recent call last):
  File "/var/lib/juju/agents/unit-neutron-gateway-0/charm/hooks/install", line 420, in <module>
    main()
  File "/var/lib/juju/agents/unit-neutron-gateway-0/charm/hooks/install", line 412, in main
    hooks.execute(sys.argv)
  File "/var/lib/juju/agents/unit-neutron-gateway-0/charm/hooks/charmhelpers/core/hookenv.py", line 963, in execute
    self._hooks[hook_name]()
  File "/var/lib/juju/agents/unit-neutron-gateway-0/charm/hooks/charmhelpers/contrib/hardening/harden.py", line 90, in _harden_inner2
    return f(*args, **kwargs)
  File "/var/lib/juju/agents/unit-neutron-gateway-0/charm/hooks/install", line 117, in install
    apt_install('python-six', fatal=True) # Force upgrade
  File "/var/lib/juju/agents/unit-neutron-gateway-0/charm/hooks/charmhelpers/fetch/ubuntu.py", line 379, in apt_install
    _run_apt_command(cmd, fatal, quiet=quiet)
  File "/var/lib/juju/agents/unit-neutron-gateway-0/charm/hooks/charmhelpers/fetch/ubuntu.py", line 955, in _run_apt_command
    _run_with_retries(
  File "/var/lib/juju/agents/unit-neutron-gateway-0/charm/hooks/charmhelpers/fetch/ubuntu.py", line 932, in _run_with_retries
    result = subprocess.check_call(cmd, env=env, **kwargs)
  File "/usr/lib/python3.10/subprocess.py", line 369, in check_call
    raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['apt-get', '--assume-yes', '--option=Dpkg::Options::=--force-confold', 'install', 'python-six']' returned non-zero exit status 100.