Case C-238/21: Judgment of the Court (First Chamber) of 17 November 2022 (request for a preliminary ruling from the Landesverwaltungsgericht Steiermark — Austria) — Porr Bau GmbH v Bezirkshauptmannschaft Graz-Umgebung (Reference for a preliminary ruling — Environment — Waste — Directive 2008/98/EC — Point 1 of Article 3 — Article 5(1) — Article 6(1) — Excavated materials — Concepts of ‘waste’ and of ‘by-product’ — Cessation of waste status)