Case T-40/23: Judgment of the General Court of 7 February 2024 — Hatherly v EUAA (Civil service — Staff of the EUAA — Recruitment — Vacancy notice — Selection procedure for posts of assistants — Job offer — Condition relating to level of post-secondary education attested by a diploma and appropriate professional experience acquired after having obtained the diploma — Withdrawal of job offer — Error of assessment — Equal treatment — Proportionality — Liability)