doc: mark `process.hrtime()` as legacy
The docs already states the API is legacy, but we haven't given it the official badge yet: https://github.com/nodejs/node/blob/87805375645f7af36fce2e59289559f746a7131d/doc/api/process.md#L1421-L1422
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
The docs already states the API is legacy, but we haven't given it the official badge yet: https://github.com/nodejs/node/blob/87805375645f7af36fce2e59289559f746a7131d/doc/api/process.md#L1421-L1422