[MacPorts] #64579: py310-pyobjc @7.3_2 fails to build on MacOS 10.15

[MacPorts]

#64579: py310-pyobjc @7.3_2 fails to build on MacOS 10.15
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  Reporter:  Gandoon    |      Owner:  danchr
      Type:  defect     |     Status:  assigned
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.7.1
Resolution:             |   Keywords:
      Port:  py-pyobjc  |
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Comment (by reneeotten):

 the port should be updated to its latest version, which will
 possible/likely eliminate the issues ; see #64766. Not sure whether or not
 the maintainer is working on this, but if not I might take a stab at it in
 the next days myself.

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Ticket URL: <https://trac.macports.org/ticket/64579#comment:6>
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