Update authors
Alternative to https://github.com/nodejs/node/pull/40848. (I'm totally fine if that one copies over the .mailmap changes from here and we close this one. I'm also fine if we close that one and use this one instead. Either way.)
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Alternative to https://github.com/nodejs/node/pull/40848. (I'm totally fine if that one copies over the .mailmap changes from here and we close this one. I'm also fine if we close that one and use this one instead. Either way.)