[feature request]: Support changing listeners at runtime

[mkg20001]

• Version: next, hopefully
• Platform: Any
• Subsystem: transport

Type: feature

Severity: low

Description: Support changing listeners at runtime

It would be great if there would be some non-hacky way to change the listeners a transport listens on.

For example libp2p-nodetrust needs to create a websockets-secure listener after obtaining a certificate and currently is using a hack to add the listener to the swarm

[achingbrain]

Closing due to staleness - if this is still a piece of functionality that would be useful to have please open a new issue.