Replace buntis with typescript-estree

[vbraun]

The buntis git repo has been deleted by upstream, so we shouldn't rely on it. For future historians: See https://github.com/meriyah/meriyah/issues/48

If you want reliable typescript parsing then we have typescript-estree nowadays, which is used by eslint and prettier. See https://github.com/typescript-eslint/typescript-eslint/tree/master/packages/typescript-estree for more details.

[cangd]

I have been looking for solution with a newer ts parser, since it didn't seem to like import type { foo } even though its proper typescript these days :)

Will this be merged soon? :)