doc: fix dns.lookup and dnsPromises.lookup description
Fixes: https://github.com/nodejs/node/issues/51482 Continue on: https://github.com/nodejs/node/pull/51483
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Fixes: https://github.com/nodejs/node/issues/51482 Continue on: https://github.com/nodejs/node/pull/51483