Case C-270/21, A (Nursery school teacher): Judgment of the Court (Fourth Chamber) of 2 March 2023 (request for a preliminary ruling from the Korkein hallinto-oikeus — Finland) — A (Reference for a preliminary ruling — Freedom of movement for workers — Recognition of professional qualifications in a Member State — Directive 2005/36/EC — Right to exercise the profession of nursery school teacher — Regulated profession — Right of access to the profession on the basis of a diploma issued in the home Member State — Professional qualification obtained in a third country)