Case C-724/21: Order of the Court (Eighth Chamber) of 16 May 2022 (request for a preliminary ruling from the Landgericht Köln — Germany) — RV (Reference for a preliminary ruling — Article 99 of the Rules of Procedure of the Court of Justice — Citizenship of the Union — Article 21 TFEU — Right to move and reside freely in the territory of the Member States — Criminal offence specifically concerning international child abduction — Restriction — Child protection — Proportionality)