[MacPorts] #53124: julia @0.4.6: Update to 0.6.0

[MacPorts]

#53124: julia @0.4.6: Update to 0.6.0
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  Reporter:  manuSrep  |      Owner:  seanfarley
      Type:  update    |     Status:  assigned
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:
Resolution:            |   Keywords:
      Port:  julia     |
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Comment (by Polyergic):

 I'd like to help make this happen, but my attempt to build julia locally
 also failed - https://github.com/JuliaLang/julia/issues/23425

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Ticket URL: <https://trac.macports.org/ticket/53124#comment:13>
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