should @typescript-eslint/parser be listed in peer dependencies?

[aladdin-add]

a while ago, the xo style guide has been added to @eslint/create-config. In the PR we tried to switch to use the package eslint-config-xo-typescript when users choose typescript + xo.

the problem is: @typescript-eslint/parser was not listed in its peer dependencies. Surely, it's not an issue for npm v7+ users - it's listed in @typescript-eslint/eslint-plugin's peerdeps and will be auto installed. But it won't work for yarn/pnpm/... users.

related discussion: eslint/create-config#33

[sindresorhus]

I feel that's an issue Yarn and PNPM need to resolve.

But if anyone feels strongly and cares enough to contribute a fix, I will merge it.