How to install keytar(Node module to manage system keychain) in cordova electron@3.0.0?

# Bug Report

## Problem
keytar package is not picked after building cordova-electron

### What is expected to happen?
npm i keytar should install keytar in packaged cordova-electron

### What does actually happens?
keytar package is getting removed from the package.json after building the app

## Information
1-npm i keytar,
2. use any keytar function
3. build the app using cordova build electron

### Command or Code
cordova build electron

### Environment, Platform, Device
platform - windows 10

### Version information

cordova 11.0.0
cordova-electron 3.0.0

## Checklist

- [* ] I searched for existing GitHub issues
- [* ] I updated all Cordova tooling to most recent version
- [ *] I included all the necessary information above

Start by reproducing the issue on Windows 10 with npm i keytar followed by cordova build electron, then compare package.json and the packaged app before and after the build. The issue is done when keytar is retained in the packaged cordova-electron app and its functions work after building.

Written by the indexing model from the issue text.