support peer dependency eslint 7 || 8

[artivilla]

Trying to update some of my packages and this lib has been really useful. Can put in PR for this to support peers 7 || 8

"peerDependencies": {
    "eslint": "^6.0.0 || ^7.0.0 || ^8.0.0"
},

Any suggestions on how to test this plugin?

[TomFreudenberg]

As long as this wont be fixed, you may use this repo:

https://github.com/4commerce-technologies-AG/eslint-plugin-material-ui-unused-classes

npm install --save-dev https://github.com/4commerce-technologies-AG/eslint-plugin-material-ui-unused-classes

[jens-ox]

Hi all! I just tagged and released v2, eslint is now set to * as peer dependency.