[Bug]: set_flow_temperature_optimization does not return data (any more?)

[xiic]

Describe the Bug

When calling set_flow_temperature_optimization (PUT), the API does not return any data. Not sure if that changed or was always the case, but now it seems to behave in this way for my_tado and hops in this way. For hops the interface already expected SuccessResult, so this should be changed for my_tado as well

Example:

PyTado.models.util :: ERROR    :: Model <class 'PyTado.models.pre_line_x.flow_temperature_optimization.FlowTemperatureOptimization'> failed to validate with data {'success': True}

has_multiple_boiler_control_devices
  Field required [type=missing, input_value={'success': True}, input_type=dict]

max_flow_temperature
  Field required [type=missing, input_value={'success': True}, input_type=dict]

max_flow_temperature_constraints
  Field required [type=missing, input_value={'success': True}, input_type=dict]

auto_adaptation
  Field required [type=missing, input_value={'success': True}, input_type=dict]

open_therm_device_serial_number
  Field required [type=missing, input_value={'success': True}, input_type=dict]

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Steps to Reproduce

Steps to reproduce the behavior:

1. call set_flow_temperature_optimization with a my_tado (pre_line_x)

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Environment

Provide details about your environment where the bug occurred:

• PyTado Version: master (8145631)
• Tado Generation: V3+

[xiic]

@wmalgadey - I've created a #291, could you take a look and merge?