Suggestion

ESLint uses Object.hasOwn() (e.g. in lib/rules/prefer-object-has-own). That's a good sign that we should be able to use it too!

But, our TSConfig lib range is only up to "ES2021" right now. That doesn't allow Object.hasOwn. Which makes me think that we should upgrade our lib and/or target in our TSConfigs to match ESLint's to at least... "ES2022"? Investigation required.

Note: please target this against the v8 branch. Just to be safe, let's treat it as a followup to #8929 -> #8973.

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