TypeScript 5.5 Support

[bradzacher]

https://devblogs.microsoft.com/typescript/announcing-typescript-5-5-beta/

Please read through our TypeScript version policy: https://typescript-eslint.io/users/dependency-versions#typescript

This issue is just to track all of the new features and their implementation state in this project.
As with all releases, we will not necessarily to support all features until closer to the full release when everything the features are stabilised.

Please be patient.

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