Move output to connection utils

Signed-off-by: Katarzyna Treder <katarzyna.treder@h-partners.com>

test/functional/tests/security/test_security_user.py

@@ -15,7 +15,7 @@ from storage_devices.disk import DiskType, DiskTypeSet, DiskTypeLowerThan
 from test_tools import fs_utils
 from test_tools.disk_utils import Filesystem
 from test_utils.os_utils import create_user, check_if_user_exists
-from test_utils.output import CmdException
+from connection.utils.output import CmdException
 from types.size import Size, Unit
 
 mount_point = "/mnt/cas"