[MacPorts] #44804: Update protobuf-cpp to 2.6.0

[MacPorts]

#44804: Update protobuf-cpp to 2.6.0
---------------------------+---------------------
  Reporter:  nomis52@…     |      Owner:  blair@…
      Type:  update        |     Status:  closed
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:
Resolution:  fixed         |   Keywords:
      Port:  protobuf-cpp  |
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Changes (by adfernandes@…):

 * status:  new => closed
 * resolution:   => fixed


Comment:

 r133278

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Ticket URL: <https://trac.macports.org/ticket/44804#comment:4>
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