tools: enable prefer-object-has-own lint rule
First commit is from https://github.com/nodejs/node/pull/41229.
Second commit enables the lint rule. Ref: https://eslint.org/docs/rules/prefer-object-has-own
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
First commit is from https://github.com/nodejs/node/pull/41229.
Second commit enables the lint rule. Ref: https://eslint.org/docs/rules/prefer-object-has-own