ui_tests: fix test_config::test_size_limits
Fix a regression caused by: https://pagure.io/freeipa/issue/7606
Signed-off-by: Armando Neto <abiagion@redhat.com>
Reviewed-By: Pavel Picka <ppicka@redhat.com>
Reviewed-By: Tibor Dudlak <tdudlak@redhat.com>