Case C-148/22, Commune d’Ans: Judgment of the Court (Grand Chamber) of 28 November 2023 (request for a preliminary ruling from the tribunal du travail de Liège — Belgium) — OP v Commune d’Ans (Reference for a preliminary ruling — Social policy — Directive 2000/78/EC — Establishing a general framework for equal treatment in employment and occupation — Prohibition of discrimination on the grounds of religion or belief — Public sector — Terms of employment of a public administration prohibiting the visible wearing of any philosophical or religious sign in the workplace — Islamic headscarf — Requirement of neutrality in contacts with the public, hierarchical superiors and colleagues)