Get file download URL

curl --request GET \
  --url https://convertly.sh/api/files/{id} \
  --header 'Authorization: Bearer <token>'

{
  "file": {
    "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "filename": "<string>",
    "mimeType": "<string>",
    "downloadUrl": "<string>",
    "expiresIn": 123
  }
}