Case C-375/21: Request for a preliminary ruling from the Varhoven administrativen sad (Bulgaria) lodged on 17 June 2021 — Sdruzhenie ‘Za Zemiata — dostap do pravosadie’ and Others, ‘The Green Tank — grazhdansko sdruzhenie s nestopanska tsel’ — Hellenic Republic, NS v Izpalnitelen direktor na Izpalnitelna agentsia po okolna sreda, TETS Maritsa-iztok 2 EAD