Fix Windows `npm install`
Fix Windows `npm install`

Like `appdmg`, `electron-installer-debian` cannot be installed on Windows.

webtorrent/webtorrent-desktop,webtorrent/webtorrent-desktop,webtorrent/webtorrent-desktop,feross/webtorrent-app,feross/webtorrent-app,feross/webtorrent-app