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

[MacPorts]

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

 * Attachment "yaml-cpp-update.diff" added.


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