Case T-127/21: Order of the General Court of 21 December 2022 — Swissgrid v Commission (Action for annulment — Energy — European platforms for the exchange of standard products for balancing energy — Switzerland’s participation — Article 1(6) and (7) of Regulation (EU) 2017/2195 — Commission’s letter refusing the participation of the Swiss transmission system operator — Act not open to challenge — Inadmissibility)