[Gossipsub] Handle unsupported peers #2241
Merged
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Previously, peers that did not support gossipsub were removed from the connection-id mappings.
This can cause the connection_id mappings to go out of sync with those managed by the swarm. This PR corrects this and adds an extra event that can inform the user that a peer that does not support the protocol has connected. The user can then optionally handle peers that don't support the protocol.