Prop 313: 8.2. Test IPv6 Statistics using Chutney

We want to test IPv6 connection and consumed bandwidth statistics using chutney networks. However, chutney runs for a short amount of time, and creates a limited amount of traffic, so we also need to test these changes on the public tor network.

In particular, we have struggled to test statistics using chutney, because tor's hard-coded statistics period is 24 hours. (And most chutney networks run for under 1 minute.)

Maybe we can change the statistics interval to 10-30 seconds, and see if that works?

See proposal 313, section 8.2, chutney tests part: https://gitweb.torproject.org/torspec.git/tree/proposals/313-relay-ipv6-stats.txt#n355