[MacPorts] #70553: scamper: Update to 20240813

[MacPorts]

#70553: scamper: Update to 20240813
----------------------------+-------------------------
  Reporter:  matthewluckie  |      Owner:  TheRealKeto
      Type:  update         |     Status:  closed
  Priority:  Normal         |  Milestone:
 Component:  ports          |    Version:  2.9.3
Resolution:  fixed          |   Keywords:  haspatch
      Port:  scamper        |
----------------------------+-------------------------

Comment (by barracuda156):

 But it fails to build #71519

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Ticket URL: <https://trac.macports.org/ticket/70553#comment:5>
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