Description of problem:

Leapp cannot upgrade 8.4 to 9.1 due to firewalldcollectusedobjectnames actor


How reproducible:

Always 

Steps to Reproduce:
1. Run leapp preupgrade


Actual results:

==> Processing phase `FactsCollection`
====> * firewalld_collect_used_object_names
        This actor reads firewalld's configuration and produces Model
Process Process-133:
Traceback (most recent call last):
  File "/usr/lib64/python3.6/multiprocessing/process.py", line 258, in _bootstrap
    self.run()
  File "/usr/lib64/python3.6/multiprocessing/process.py", line 93, in run
    self._target(*self._args, **self._kwargs)
  File "/usr/lib/python3.6/site-packages/leapp/repository/actor_definition.py", line 72, in _do_run
    actor_instance.run(*args, **kwargs)
  File "/usr/lib/python3.6/site-packages/leapp/actors/__init__.py", line 289, in run
    self.process(*args)
  File "/etc/leapp/repos.d/system_upgrade/el8toel9/actors/firewalldcollectusedobjectnames/actor.py", line 19, in process
    self.produce(read_config())
  File "/etc/leapp/repos.d/system_upgrade/el8toel9/actors/firewalldcollectusedobjectnames/libraries/private_firewalldcollectusedobjectnames.py", line 68, in read_config
    conf = fw.config.get_zone_config_dict(obj)
AttributeError: 'FirewallConfig' object has no attribute 'get_zone_config_dict'

Expected results:

passed actor

Additional info:

RHEL 8.4 has python3-firewall-0.8.2-6.el8.noarch
RHEL 8.6 has python3-firewall-0.9.3-11.el8.noarch which has

/usr/lib/python3.6/site-packages/firewall/core/fw_config.py
    def get_zone_config_dict(self, obj):
        return obj.export_config_dict()

and actor has
private_firewalldcollectusedobjectnames.py
    conf = fw.config.get_zone_config_dict(obj)

As a solution we may fix actor to be compatible with RHEL 8.4. Or backport python3-firewall-0.9.3 to RHEL 8.4