Joined Cases C-711/21 and C-712/21, État belge (Circumstances subsequent to a return decision) and Others: Judgment of the Court (Fourth Chamber) of 22 June 2023 (requests for a preliminary ruling from the Conseil d’État — Belgium) — XXX (C-711/21), XXX (C-712/21) v État belge, represented by the Secrétaire d’État à l’Asile et la Migration (Reference for a preliminary ruling — Article 267 TFEU — Admissibility — Continued interest in bringing proceedings in the dispute in the main proceedings — Obligation of the referring court to verify)