Issue a new signing secret

Issue a new signing secret. The new one is in the reply — the ONLY time it is handed out — and the old one stops working the same second. Queued deliveries are signed with the new one when sent. The receiver keeps its id, delivery log and queue, so you do not have to delete and recreate it.

curl --request POST \
  --url "https://api.telefonai.dk/v1/webhooks/<id>/rotate-secret" \
  --header "Authorization: Bearer $API_NOEGLE" \
  --header "Content-Type: application/json" \
  --data '{}'

{
  "error": {
    "code": "unauthorized",
    "message": "Missing or invalid API key."
  }
}