fix(deps): add downstream peer dependencies

[nicholaschiang]

Fixes #6 by adding downstream peer dependencies to this package (we add
the React specific dependencies as optional).

This also enables Yarn v2 support (which requires upstream packages to
include their dependency's peer dependencies).

[iamturns]

Great PR, thank you! Just one question about a version number. Cheers!

[iamturns]

Curious where this version came from?

In both eslint-config-airbnb and eslint-config-airbnb-base they reference ^2.22.0

[nicholaschiang]

I got that version from the warning logs when installing with Yarn V2 PNP.

[iamturns]

Looks like the peer dependency version was updated pretty recently in eslint-config-airbnb. Maybe the warning log you referenced was slightly outdated. Can you update this line ^2.22.0?

[nilzona]

This will be a bit hard to maintain. To mimic other libraries' peer dependencies will just go out of sync with time. I think it's cleaner to deal with this problem to decouple this library's dependencies from airbnb as much as possible and instead provide guidance on how to deal with these.
An alternative approach is proposed here #201

[stalniy]

this doesn't help, because this repo doesn't depend on :

    "eslint-plugin-jsx-a11y": "^6.3.0",
    "eslint-plugin-react": "^7.20.0",
    "eslint-plugin-react-hooks": "^4 || ^3 || ^2.3.0 || ^1.7.0"

But eslint-config-airbnb does, please read my comment

[iamturns]

I don't think this PR is relevant anymore, especially with the new dependencies introduced in #229

Thanks @stalniy