the websocket listener kept its accept channel open on Close, so an Accept call that was already waiting blocked forever
every other listener in pkg/util/net closes the channel and returns an error, but this one never did, so the HandleListener goroutine stayed stuck after the server closed
i close the channel on Close, guard the hand off send so a late connection does not panic, and return ErrWebsocketListenerClosed which was declared but never reached
Signed-off-by: Abdel <62770500+hktitof@users.noreply.github.com>
