feat: update css-minimizer-webpack-plugin to v7, fixed cssnano lexical error

[Profesor08]

The issue comes from outdated css-minimizer-webpack-plugin and cssnano. Current pull request updates css-minimizer-webpack-plugin to newer version, with newer cssnano where this issue is fixed. Also updates test, to make sure this issue will not happen again.

Describe the bug

.item {
  height: calc-size(auto, size);
}

File: file.css:1:1
  ⚠ file.css from Css Minimizer plugin
  │ postcss-calc: file.css:828:5: Lexical error on line 1: Unrecognized text.
  │
  │   Erroneous area:
  │ 1: auto, size
  │ ^..^

[chenjiahan]

Thank you!

[chenjiahan]

Released: https://github.com/rspack-contrib/rsbuild-plugin-css-minimizer/releases/tag/v1.1.0