fix: adjust binary call for microfrontends proxy on Windows (#10962)
### Description
The microfrontends local development proxy fails to start on Windows
because it runs into: `%1 is not a valid Win32 application`. The issue
is that Turborepo runs the `.js` script and relies on the shebang to be
run correctly. That doesn't work on Windows. This PR changes the code to
run `node` which will work on Windows.
### Testing Instructions
In a microfrontends repository, such as
https://github.com/vercel-labs/microfrontends-nextjs-app-multi-zone, run
`pnpm turbo run dev` on Windows and ensure that it starts up.
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Co-authored-by: Anthony Shew <anthonyshew@gmail.com>