[MacPorts] #55847: freecad: Update to 0.16.6712

[MacPorts]

#55847: freecad: Update to 0.16.6712
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  Reporter:  ryandesign  |      Owner:  mark.brethen@…
      Type:  update      |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:
Resolution:              |   Keywords:
      Port:  freecad     |
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Comment (by Schamschula):

 I'm aware of this update. I tried building this version about one month
 ago. However, it fails to build with the same error as in #55840

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Ticket URL: <https://trac.macports.org/ticket/55847#comment:1>
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