Council Decision (EU) 2023/747 of 31 March 2023 on the position to be taken on behalf of the European Union within the Association Committee in Trade configuration established by the Association Agreement between the European Union and the European Atomic Energy Community and their Member States, of the one part, and Ukraine, of the other part as regards the modification of Appendix XVII-3 (Rules applicable to telecommunication services) of Annex XVII to that Agreement