Temporarily disable some test262 tests which no longer produce the expected results when using CLDR 42 resp. Unicode 15. We can re-enable those tests when we next update test262 and the following PRs are all merged upstream: - https://github.com/tc39/test262/pull/3662 - https://github.com/tc39/test262/pull/3663 - https://github.com/tc39/test262/pull/3676 Differential Revision: https://phabricator.services.mozilla.com/D160192