The pytest .yaml files have been rename to .yml to enable
build-galaxy-release to fix the prefix of the ansible-freeipa modules.

Evaluating boolean values output by FreeIPA must use regular
expressions to handle both "TRUE/FALSE" and "True/False".

This patch is needed to pass Automation Hub tests.

As of FreeIPA 4.9.7, setting SOA serial is deprecated, so this change
removes support for setting this variable in ipadnszone module.

Until now ansible-freeipa repository only had playbook tests. This
commit introduces the ability of creating TestCase classes connected to
the master host. This connection can be used to run commands in the
managed host after the ansible playbook execution is the allowing the
verification of the machine state.