Windows nodejs build fails

Something is behaving badly on #19 on windows when trying to build on windows, not going to work on it further right now.

https://github.com/jupyterlite/pyodide-kernel/actions/runs/4360695908/jobs/7623864013

```

> @jupyterlite/pyodide-kernel:"build:prod"

@jupyterlite/pyodide-kernel: $ jlpm build
@jupyterlite/pyodide-kernel: $ jlpm build:lib && jlpm build:worker
@jupyterlite/pyodide-kernel: $ tsc -b
@jupyterlite/pyodide-kernel: $ esbuild --bundle --minify --sourcemap --target=es2019 --format=esm --outfile=lib/worker.js src/worker.ts
@jupyterlite/pyodide-kernel: lib\worker.js 163.2kb
@jupyterlite/pyodide-kernel: lib\worker.js.map 647.7kb

> @jupyterlite/pyodide-kernel-extension:"build:prod"

@jupyterlite/pyodide-kernel-extension: $ jlpm build:lib && jlpm build:labextension
@jupyterlite/pyodide-kernel-extension: $ tsc
@jupyterlite/pyodide-kernel-extension: $ jupyter labextension build .
@jupyterlite/pyodide-kernel-extension: Building extension in .
@jupyterlite/pyodide-kernel-extension: Compilation starting…
@jupyterlite/pyodide-kernel-extension: Compilation finished
@jupyterlite/pyodide-kernel-extension: [
@jupyterlite/pyodide-kernel-extension: {
@jupyterlite/pyodide-kernel-extension: moduleIdentifier: 'D:\\a\\pyodide-kernel\\pyodide-kernel\\packages\\pyodide-kernel\\pypi\\ipykernel-6.9.2-py3-none-any.whl',
@jupyterlite/pyodide-kernel-extension: moduleName: '../pyodide-kernel/pypi/ipykernel-6.9.2-py3-none-any.whl',
@jupyterlite/pyodide-kernel-extension: loc: '1:2',
@jupyterlite/pyodide-kernel-extension: message: "Module parse failed: Unexpected character '\x03' (1:2)\n" +
```