Issue an mTLS client certificate for an integration account operator

curl --request POST \
  --url https://api.ilyama.golain.io/core/api/v1/organizations/integrations/accounts/{account_id}/operator-cert \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'ORG-ID: <api-key>' \
  --data '
{
  "operator_kind": "<string>",
  "subject_name": "<string>"
}
'

{
  "data": "<unknown>",
  "meta": "<unknown>"
}