[MacPorts] #61286: py-pip needs version for python3.9 official release

[MacPorts]

#61286: py-pip needs version for python3.9 official release
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 Reporter:  usernamedefault  |      Owner:  (none)
     Type:  defect           |     Status:  new
 Priority:  Normal           |  Milestone:
Component:  ports            |    Version:
 Keywords:                   |       Port:  py-pip
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 port python39 is now live, pip needs to be update

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Ticket URL: <https://trac.macports.org/ticket/61286>
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