add option to exclude shared dependencies from build

[tky753]

Clear and concise description of the problem

I use rsbuild for building, and want to minimize my remote module size,
so I don't want shared dependencies generated on remotes as I can load it from my host.
I tried these config in rsbuild.config.ts:

import { ModuleFederationPlugin } from '@module-federation/enhanced/rspack'
......
  output: {
    externals: ["react"]
  },
  tools: {
    rspack: (config, { appendPlugins }) => {
      appendPlugins([
        new ModuleFederationPlugin({
          shared: {
            react: { singleton: true }
          }
       })
    }
  }

but where I run rsbuild build, shared react is still generated at:
dist\static\js\async\lib-react.e00de504.js

Suggested solution

add ModuleFederationPluginOptions options:

/* exclude shared dependencies from build, default: false */
external?:  boolean

Alternative

No response

Additional context

No response

Validations

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