Case C-601/19 P: Judgment of the Court (Eighth Chamber) of 17 December 2020 — BP v European Union Agency for Fundamental Rights (FRA) (Appeal — Civil service — Members of the contract staff — European Union Agency for Fundamental Rights (FRA) — Fixed-term contract — Decision not to renew — New decision adopted following an annulment by the General Court — Irregularities allegedly committed during the implementation of the General Court judgment)