Case C-894/19 P: Judgment of the Court (Second Chamber) of 21 October 2021 — European Parliament v UZ (Appeal — Civil service — Officials — Disciplinary proceedings — Disciplinary penalty — Administrative enquiry — Article 41(1) of the Charter of Fundamental Rights of the European Union — Requirement for objective impartiality — Cross-appeal — Rejection of a request for assistance — Article 41(2) of the Charter of Fundamental Rights of the European Union — Right to be heard)