fix(type): Add missing OptimizationSplitChunksNameFunction param

[Lemonexe]

Summary

Add missing argument to type declaration of OptimizationSplitChunksNameFunction.

Notes

ℹ️ I have found this only empirically while migrating a webpack project to Rspack, but I have no experience with Rspack codebase, so it'd be appreciated if reviewers verified if the type declaration is appropriate.

The following excerpt of rspack.config.ts works correctly, but yields TS error (it is used to group shared chunks, e.g. shared/main-app~subprocess-app.js):

    optimization: {
        splitChunks: {
            chunks: 'all',
            // Rspack type declaration is missing the 2nd argument
            // @ts-expect-error Target signature provides too few arguments. Expected 2 or more, but got 1.
            name: (_module, chunks: Chunk[]) => {
                return chunks.length === 1
                    ? chunks[0].name
                    : `shared/${chunks.map((item: any) => item.name.split('/').pop()).join('~')}`;
            },
        },
    },

Checklist

• Tests updated (or not required).
• Documentation updated (or not required).

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