Feature ktps 1452 prediction job to dataclass

[EnricoASchmitz]

The prediction job will now be returned as a dataclass, the solar and wind prediction jobs as a dict. Can only set attributes that already exist in the prediction job dataclass. Change typ to forecast_type after querying. Now logs one line if error occurs after converting from dict to dataclass

This also required change in openstf: https://github.com/alliander-opensource/openstf/pull/177

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