Case T-198/20: Order of the General Court of 8 June 2021 — Shindler and Others v Council (Action for annulment — Area of freedom, security and justice — Agreement on the withdrawal of the United Kingdom from the European Union and from Euratom — Council Decision on the conclusion of the Agreement on withdrawal — United Kingdom nationals — Loss of EU citizenship — Act not of individual concern — Non-regulatory act — Inadmissibility)