fix(rsbuild-plugin): explicitly setting CORS headers

[chenjiahan]

Description

Due to security concerns, starting with Rsbuild >= 1.3.0, the Rsbuild dev server will no longer set Access-Control-Allow-Origin to * by default (web-infra-dev/rsbuild#4876).

MF requires CORS headers, so I'll set that in @module-federation/rsbuild-plugin, which is the same as other plugins.

It's worth noting that in my opinion this is still a temporary solution, and we should try to avoid using * as the default value. A safer default value is needed instead.

Types of changes

• Docs change / refactoring / dependency upgrade
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)

Checklist

• I have added tests to cover my changes.
• All new and existing tests passed.
• I have updated the documentation.

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