[metrics-bugs] #27153 [Metrics/Onionoo]: add ipv6_as and ipv6_as_name

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#27153: add ipv6_as and ipv6_as_name
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     Reporter:  nusenu           |      Owner:  metrics-team
         Type:  enhancement      |     Status:  new
     Priority:  Medium           |  Milestone:
    Component:  Metrics/Onionoo  |    Version:
     Severity:  Normal           |   Keywords:
Actual Points:                   |  Parent ID:
       Points:                   |   Reviewer:
      Sponsor:                   |
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 There are about ~50 relays (according to RIPEstat) where the IPv4 and IPv6
 addresses of the relay are not in the same AS (mostly due to HE IPv6
 tunnel broker).

 I suspect this number will decrease over time but I still find it valuable
 to
 have the data, you might define these fields in a way that they will only
 show up iff the ASes for IPv4/v6 differ.

 This change should probably be done after #26585

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/27153>
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