fix: unexpected keyword argument

Signed-off-by: Khushiyant <khushiyant2002@gmail.com>

Author: Khushiyant

tests/unit/models_containers_test.py

@@ -49,7 +49,6 @@ def test_create_container_args(self):
             'cap_add': ['foo'],
             'cap_drop': ['bar'],
             'cgroup_parent': 'foobar',
-            'cgroup': 'host',
             'cgroupns': 'host',
             'cpu_period': 1,
             'cpu_quota': 2,