ESLint 8 support

[IlCallo]

Keeping track of eslint deps ESLint8 support status

TS ecosystem is nearly ready, JS is still lagging

Already support ESLint8 and safe/tested versions:

• eslint-plugin-vue -> 7.20.0
• eslint-plugin-import -> 2.25.1
• eslint-config-prettier -> 8.3.0
• @typescript-eslint/* -> 5.2.0

Support still missing:

• eslint-webpack-plugin: the support PR has already been merged yesterday, not released yet (feat: support eslint 8 webpack/eslint-webpack-plugin#121)
• eslint-config-standard: work in progress (feat: support eslint v8 standard/eslint-config-standard#193)
• eslint-plugin-node: should work, but there's some regressions (Support ESLint 8.x mysticatea/eslint-plugin-node#294)
• eslint-plugin-promise: work in progress (feat: support ESLint 8.x eslint-community/eslint-plugin-promise#219)
• eslint-config-airbnb-base: no support right now (eslint v8 support airbnb/javascript#2478)

[IlCallo]

I pinged eslint-plugin-node maintainer about this
Otherwise we could rely on this fork: mysticatea/eslint-plugin-node#294 (comment)
It basically only adds ESLint 8 support, could be a good "bridge" until an official solution comes out