test/: PEP8 compliancy (#24803)

* test/: PEP8 compliancy

- Make PEP8 compliant

* Python3 chokes on casting int to bytes (#24952)

But if we tell the formatter that the var is a number, it works

test/units/playbook/role/test_role.py

@@ -274,4 +274,3 @@ class TestRole(unittest.TestCase):
         r = Role.load(i, play=mock_play)
 
         self.assertEqual(r.get_name(), "foo_complex")
-