Case C-526/17: Judgment of the Court (Fifth Chamber) of 18 September 2019 — European Commission v Italian Republic (Failure of a Member State to fulfil obligations — Article 258 TFEU — Directive 2004/18/EC — Coordination of procedures for the award of public works contracts, public supply contracts and public service contracts — Public works concession contracts — Extension of the duration of an existing concession for the construction and operation of a motorway, without publication of a contract notice)