Peer dependencies out of date

[davidgruar]

These peer dependencies are specified:

"peerDependencies": {
        "stylelint": "^8.3.0",
        "stylelint-scss": "^2.0.0",
        "stylelint-order": "^0.8.0"
    }

stylelint is currently at 9.2.0, and stylelint-scss at 3.1.0, so if you install the latest versions into a new project you still get warnings about missing peer dependencies.

Should we specify acceptable ranges, i.e. ^8.3.0-^9.2.0 and ^2.0.0-^3.1.0, respectively? Or just require the latest major version? @Jameskmonger, @OwenPattison, what do you think?

[OwenPattison]

I think we should probably be using the latest version. @jamesadarich can likely weigh in on this too

[jamesadarich]

@davidgruar @OwenPattison sorry about late reply on this one.

Generally with configuration like this the major version will represent a breaking change in the configuration file itself and is unlikely to be fully compatible across mutliple major versions.

For things like this I'd usually pin it to a major version e.g. ^8.0.0 and if someone requires backwards compatibility then they use an older version of this package. Therefore every time the peer jumps up a major version so should this package.