Case C-173/19 P: Order of the Court (First Chamber) of 3 September 2021 — Scandlines Danmark ApS, Scandlines Deutschland GmbH v European Commission, Kingdom of Denmark (Appeal — Article 181 of the Rules of Procedure of the Court — Action for annulment — State aid — Public financing of the Fehmarn Belt fixed rail-road link — Individual aid — Act not open to challenge — Purely confirmatory measure — Preparatory measure)