ansible_freeipa_module: Import ipalib.errors as ipalib_errors

For beeing able to catch ipalib.errors.NotFound errors in ipahost it is
needed to import ipalib.errors. ipalib.errors is now imported as
ipalib_errors to not have name conflicts with the errors list used in some
of the modules.

Related: https://bugzilla.redhat.com/show_bug.cgi?id=1804838

plugins/module_utils/ansible_freeipa_module.py

@@ -28,6 +28,7 @@ import shutil
 import gssapi
 from datetime import datetime
 from ipalib import api
+from ipalib import errors as ipalib_errors
 from ipalib.config import Env
 from ipalib.constants import DEFAULT_CONFIG, LDAP_GENERALIZED_TIME_FORMAT
 try: