Manage monorepo packageManager version

Add support for managing versions in engines and packageManager properties of your package.json files.

.syncpackrc

{
  "customTypes": {
    "engines": {
      "path": "engines",
      "strategy": "versionsByName"
    },
    "packageManager": {
      "path": "packageManager",
      "strategy": "name@version"
    }
  }
}