Metadata correction for 2023.eval4nlp-1.15

[ooiplh20]

JSON data block

{
  "anthology_id": "2023.eval4nlp-1.15",
  "authors": [
    {
      "first": "Yu-An",
      "last": "Lu",
      "id": "yuan-lu"
    },
    {
      "first": "Yu-Ting",
      "last": "Lin",
      "id": "yu-ting-lin"
    }
  ]
}

[github-actions]

Found ACL Anthology entry: https://aclanthology.org/2023.eval4nlp-1.15

[nschneid]

first author: hyphenation and capitalization