support css/auto as css module type #16572

Feature request

What is the expected behavior?
I want to use webpack css module to handle less-loader result

{
   module: {
    rules: [{
       test: /\.less$/,
       use: ['less-loader'],
       type: 'css/auto'
     }]
   }
}

without css/auto we need to configure two rules

{
   module: {
    rules: [{
       test: /\.module.less$/,
       use: ['less-loader'],
       type: 'css/module'
     },{
       test: /(?<!module).less$/,
       use: ['less-loader'],
       type: 'css/global'
     }]
   }
}

What is motivation or use case for adding/changing the behavior?
simplify the interop of experimental.css with less | sass
How should this be implemented in your opinion?
add a separate css/auto to automatic handle css file like css-loader https://github.com/webpack-contrib/css-loader/blob/ef749f29f8696b93f9eea61e6d00f2bb30ce094c/src/utils.js#L543
Are you willing to work on this yourself?
yes