tests use hard-coded endpoint string instead of EndpointInfo objects

test_scan_control uses a hard-coded path for the redis endpoint instead of the endpointinfo object:

@pytest.fixture(scope="function")
def scan_control(qtbot, mocked_client):  # , mock_dev):
    mocked_client.connector.set("scans/available_scans", available_scans_message)
    mocked_client.connector.lpush("internal/queue/queue_history", scan_history)
    widget = ScanControl(client=mocked_client)
    qtbot.addWidget(widget)
    qtbot.waitExposed(widget)
    yield widget