Case T-399/19: Judgment of the General Court of 2 February 2022 — Polskie Górnictwo Naftowe i Gazownictwo v Commission (Rejection of a complaint) (Competition — Abuse of a dominant position — Gas markets of central and eastern Europe — Decision rejecting a complaint — No EU interest — State action defence — Obligation to conduct a diligent examination — Procedural rights under Regulation (EC) No 773/2004)