package.json local paths are not supported

### Pre-flight checklist

- [X] I have read the [contribution documentation](https://github.com/electron/forge/blob/main/CONTRIBUTING.md) for this project.
- [X] I agree to follow the [code of conduct](https://github.com/electron/electron/blob/main/CODE_OF_CONDUCT.md) that this project uses.
- [X] I have searched the issue tracker for a bug that matches the one I want to file, without success.

### Electron Forge version

6.1.1

### Electron version

v24.3.0

### Operating system

macOS 13.3.1

### Last known working Electron Forge version

_No response_

### Expected behavior

`npx electron-forge make` succeeds.

### Actual behavior

It outputs an error message saying

> An unhandled rejection has occurred inside Forge:
Error: ENOENT: no such file or directory, stat '/private/var/folders/4c/w1bj9h4d5_df436ckn8xxmqr0000gq/T/electron-packager/darwin-x64/BIMx-darwin-x64-bvme29/Electron.app/Contents/Resources/app/node_modules/connector'

### Steps to reproduce

Have a dependency in package.json specified by a relative path like this: (see [npm docs](https://docs.npmjs.com/cli/v9/configuring-npm/package-json#local-paths))

```
"dependencies": {
"foo": "file:../../foo/foo.node"
}
```

Run `npx electron-forge make`.

### Additional information

_No response_