[MacPorts] #64766: py-pyobjc: update to 8.3

[MacPorts]

#64766: py-pyobjc: update to 8.3
-------------------------+----------------------
  Reporter:  reneeotten  |      Owner:  danchr
      Type:  update      |     Status:  assigned
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:
Resolution:              |   Keywords:
      Port:  py-pyobjc   |
-------------------------+----------------------
Description changed by reneeotten:

Old description:

> {{{
> % port livecheck py-pyobjc
> py-pyobjc seems to have been updated (port version: 7.3, new version:
> 8.3)
> }}}

New description:

 {{{
 % port livecheck py-pyobjc
 py-pyobjc seems to have been updated (port version: 7.3, new version: 8.4)
 }}}

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Ticket URL: <https://trac.macports.org/ticket/64766#comment:1>
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