[tahoe-lafs-trac-stream] [Tahoe-LAFS] #3406: Upgrade CircleCI config to version 2.1

[Tahoe-LAFS]

#3406: Upgrade CircleCI config to version 2.1
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     Reporter:  chadwhitacre        |      Owner:
         Type:  task                |     Status:  closed
     Priority:  normal              |  Milestone:  Support Python 3
    Component:  dev-infrastructure  |    Version:  n/a
   Resolution:  fixed               |   Keywords:
Launchpad Bug:                      |
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Changes (by chadwhitacre):

 * status:  new => closed
 * resolution:   => fixed


Comment:

 Done in https://github.com/tahoe-lafs/tahoe-lafs/pull/809, though
 following on from exarkun's comment the plan is to implement Python 3 +
 Windows under GHA.

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Ticket URL: <https://tahoe-lafs.org/trac/tahoe-lafs/ticket/3406#comment:2>
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