[MacPorts] #69343: yaml-cpp: Update to 0.8.0

[MacPorts]

#69343: yaml-cpp: Update to 0.8.0
-----------------------+----------------------
  Reporter:  DanielO   |      Owner:  (none)
      Type:  update    |     Status:  new
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:
Resolution:            |   Keywords:  haspatch
      Port:  yaml-cpp  |
-----------------------+----------------------
Changes (by DanielO):

 * port:   => yaml-cpp


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Ticket URL: <https://trac.macports.org/ticket/69343#comment:1>
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