[MacPorts] #55797: swi-prolog-devel @7.7.8: update to 7.7.9

[MacPorts]

#55797: swi-prolog-devel @7.7.8: update to 7.7.9
---------------------------------+------------------------------
 Reporter:  pmoura               |      Owner:
     Type:  update               |     Status:  new
 Priority:  Normal               |  Milestone:
Component:  ports                |    Version:
 Keywords:  haspatch maintainer  |       Port:  swi-prolog-devel
---------------------------------+------------------------------
 Update the swi-prolog-devel portfile for the latest release.

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Ticket URL: <https://trac.macports.org/ticket/55797>
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