tools: set normalizeTD text default to empty string
https://github.com/nodejs/node/actions/runs/7597757959/job/20692964963 Undefined value crashed the action
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
https://github.com/nodejs/node/actions/runs/7597757959/job/20692964963 Undefined value crashed the action