chore(package): update spectron to version 8.0.0
chore(package): update spectron to version 8.0.0

Closes #1609
webtorrent/webtorrent-desktop,webtorrent/webtorrent-desktop,feross/webtorrent-app,webtorrent/webtorrent-desktop,feross/webtorrent-app,feross/webtorrent-app