fix(css): css.preprocessorOptions.stylus doesn't support additionalData

[hiblacker]

Description

css.preprocessorOptions.stylus doesn't support additionalData, which is different form less and sass.

Additional context

It took me a long time to read vite and stylus source code. And then I found the following solution, which is unfriendly. The additionalData should support all preprocessor. Excuse me for any omission or negligence if there is. I'll correct timely.

export default {
    css: {
        preprocessorOptions: {
            stylus: {
                use: [ 
                   style => {
                        style.import(path.join(__dirname, "src/css/var.styl"))
                    },
                ],
            },
        },
    },
}

---

What is the purpose of this pull request?

• Bug fix
• New Feature
• Documentation update
• Other

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• Read the Contributing Guidelines.
• Read the Pull Request Guidelines and follow the Commit Convention.
• Check that there isn't already a PR that solves the problem the same way to avoid creating a duplicate.
• Provide a description in this PR that addresses what the PR is solving, or reference the issue that it solves (e.g. fixes #123).
• Ideally, include relevant tests that fail without this PR but pass with it.

[patak-dev]

@hiblacker looks like there conflicts against main, could you take a look?

[antfu]

Looks like #2860 is already covered this.