Metadata correction for 2021.clpsych-1.4

[mario-mgmn-bsc]

JSON data block

{
  "anthology_id": "2021.clpsych-1.4",
  "authors": [
    {
      "first": "Hali",
      "last": "Lindsay",
      "id": "hali-lindsay"
    },
    {
      "first": "Philipp",
      "last": "Mueller",
      "id": "philipp-muller"
    },
    {
      "first": "Nicklas",
      "last": "Linz",
      "id": "nicklas-linz"
    },
    {
      "first": "Radia",
      "last": "Zeghari",
      "id": "radia-zeghari"
    },
    {
      "first": "Mario",
      "last": "Mina",
      "id": "mario-magued-mina"
    },
    {
      "first": "Alexandra",
      "last": "König",
      "id": "alexandra-konig"
    },
    {
      "first": "Johannes",
      "last": "Tröger",
      "id": "johannes-troger"
    }
  ]
}

[github-actions]

Found ACL Anthology entry: https://aclanthology.org/2021.clpsych-1.4

[nschneid]

Removes a middle name. I've also adjusted accents to match the PDF.