[MacPorts] #47266: fdupes: update to github and take maintainership

[MacPorts]

#47266: fdupes: update to github and take maintainership
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 Reporter:  lists@…   |      Owner:  macports-tickets@…
     Type:  defect    |     Status:  new
 Priority:  Normal    |  Milestone:
Component:  ports     |    Version:  2.3.3
 Keywords:  haspatch  |       Port:  fdupes
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Ticket URL: <https://trac.macports.org/ticket/47266>
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