European Tender With Open Procedure – Pursuant To Art. 70, Paragraphs 1 And 4 And Of The Art. 71, Of The Art. 225, Paragraph 8 Of Legislative Decree 36/2023, Of Legislative Decree N. 77/2021 Converted With Amendments By L. 108/2021 - For The Awarding Of The Execution Of The "Redevelopment Of The Central Pavilion" Works At The Gardens Of La Biennale Di Venice