update deprecated libp2p/go-eventbus

[brossetti1]

Checklist

• This is not a question or a support request. If you have any boost related questions, please ask in the discussion forum.
• This is not a new feature request. If it is, please file a feature request instead.
• I have searched on the issue tracker and the discussion forum, and there is no existing related issue or discussion.
• I am running the Latest release, or the most recent RC(release canadiate) for the upcoming release or the dev branch(master), or have an issue updating to any of these.

Boost component

• boost daemon - storage providers
• boost client
• boost UI
• boost data-transfer
• boost index-provider
• Other

Improvement Suggestion

deprecated library: https://github.com/libp2p/go-eventbus
use this instead: github.com/libp2p/go-libp2p/p2p/host/eventbus

[dirkmc]

Fixed by #1302