[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:
 Keywords:  haspatch  |       Port:
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 Update yaml-cpp to 0.8.0, I removed the special handling and patch as they
 did not seem necessary but perhaps I am missing something .

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