[tor-bugs] #33333 [Core Tor/Chutney]: Add a mixed+hs-v23-ipv6 network to chutney

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#33333: Add a mixed+hs-v23-ipv6 network to chutney
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     Reporter:  teor              |      Owner:  teor
         Type:  enhancement       |     Status:  assigned
     Priority:  Medium            |  Milestone:  Tor: 0.4.4.x-final
    Component:  Core Tor/Chutney  |    Version:
     Severity:  Normal            |   Keywords:  ipv6, prop311
Actual Points:                    |  Parent ID:  #33232
       Points:  0.1               |   Reviewer:
      Sponsor:  Sponsor55-must    |
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 We want to test our new IPv6 code in mixed networks, so let's add a
 `mixed+hs-v23-ipv6` network to chutney.

 It should be pretty much a copy-paste from `mixed+hs-v23` and
 `hs-v23-ipv6-md`.

 (There's no need for a non-md variant, all supported tor versions can use
 microdescriptors for IPv6 onion services.)

 Proposed design:
 * 2 dual-stack authorities,
 * 2 IPv4-only relays,
 * 2 dual-stack relays
 * 2 IPv6-only v2 onion services
 * 2 IPv6-only v3 onion services
 * 2 IPv6-only clients
 For each kind of node, one should be a new version, and one should be an
 old version.

 Other networks test IPv4-only authorities and clients, so we don't need
 them. (But we want to test IPv4 and dual-stack relays in the same
 network.)

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/33333>
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