COUNCIL DECISION (EU) 2023/2821 of 4 December 2023 on the position to be adopted, on behalf of the European Union, within the EEA Joint Committee concerning the amendment to Annexes V (Free movement of workers) and VI (Social security) and Protocol 31 (On cooperation in specific fields outside the four freedoms) to the EEA Agreement (ELA Regulation) (Text with EEA relevance)