doc: update family = 0 in dns.md
Fixes: https://github.com/nodejs/node/issues/51482
First PR, please tell me if there is anything wrong. Thanks HEHE
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
First PR, please tell me if there is anything wrong. Thanks HEHE