curl --request DELETE \
  --url https://matcher.sandbox.lerian.net/v1/discovery/connections/{connectionId} \
  --header 'Authorization: Bearer <token>'

{
  "code": "<string>",
  "detail": "<string>",
  "errors": [
    {
      "location": "<string>",
      "message": "<string>",
      "value": "<unknown>"
    }
  ],
  "instance": "<string>",
  "status": 123,
  "title": "<string>",
  "type": "about:blank"
}