Case C-112/20: Judgment of the Court (Tenth Chamber) of 11 March 2021 (request for a preliminary ruling from the Conseil d’État — Belgium) — M. A. v État belge (Reference for a preliminary ruling — Directive 2008/115/EC — Article 5 — Return decision — Father of a minor child who is a citizen of the European Union — Taking into account the best interests of the child at the time of the adoption of the return decision)