Case C-350/20: Judgment of the Court (Grand Chamber) of 2 September 2021 (request for a preliminary ruling from the Corte costituzionale — Italy) — O.D. and Others v Istituto nazionale della previdenza sociale (INPS) (Reference for a preliminary ruling — Directive 2011/98/EU — Rights for third-country workers who hold single permits — Article 12 — Right to equal treatment — Social security — Regulation (EC) No 883/2004 — Coordination of social security systems — Article 3 — Maternity and paternity benefits — Family benefits — Legislation of a Member State excluding third-country nationals holding a single permit from entitlement to a childbirth allowance and a maternity allowance)