[MacPorts] #60486: py-emcee: Add py38-emcee subport

[MacPorts]

#60486: py-emcee: Add py38-emcee subport
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  Reporter:  lpagani91  |      Owner:  lpsinger
      Type:  request    |     Status:  assigned
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.6.2
Resolution:             |   Keywords:
      Port:  py-emcee   |
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Comment (by lpsinger):

 Fixed in c6e7a8ee1cc573199c74da1b02ed0c9764fd7540.

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Ticket URL: <https://trac.macports.org/ticket/60486#comment:2>
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