[MacPorts] #50612: py-powerline update to 2.3

[MacPorts]

#50612: py-powerline update to 2.3
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 Reporter:  macports@…  |      Owner:  macports-tickets@…
     Type:  update      |     Status:  new
 Priority:  Normal      |  Milestone:
Component:  ports       |    Version:
 Keywords:  haspatch    |       Port:  py-powerline
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 py-powerline needs to be updated to 2.3.

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Ticket URL: <https://trac.macports.org/ticket/50612>
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