MEDIUM: mux-h1: Add keep-alive outgoing connections in connections list

With the legacy representation, keep-alive outgoing connections are added in
private/idle/safe connections list when the transaction is cleaned up. But this
stage does not exist with the HTX representaion because a new stream, and
therefore a new transaction, is created for each request. So it is now handled
when the stream is detached from the connection.
1 file changed