Open Procedure Pursuant To Art. 71 Of Legislative Decree 36/2023, Of Community Relevance, Entirely Electronic, Concerning The Four -Year Assignment (48 Months) Of The Ground Assistance Service, (So -Called "Handling"), Including The Handling Activities Of Luggage, Goods And Mail, Cleaning Aircraft, Sorting In The "Girello" Area To Be Allocated To The C. Colombo Airport In Genoa.