[MacPorts] #53728: Update maxima to 5.39.0

[MacPorts]

#53728: Update maxima to 5.39.0
---------------------+---------------------------------
  Reporter:  KubaO   |      Owner:
      Type:  update  |     Status:  new
  Priority:  Normal  |  Milestone:
 Component:  ports   |    Version:
Resolution:          |   Keywords:  haspatch maintainer
      Port:  maxima  |
---------------------+---------------------------------
Changes (by mf2k):

 * keywords:   => haspatch maintainer
 * type:  defect => update


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Ticket URL: <https://trac.macports.org/ticket/53728#comment:1>
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