[MacPorts] #52740: icoutils @0.31.0: Remove jonah at jonahb.com from maintainers

[MacPorts]

#52740: icoutils @0.31.0: Remove jonah at jonahb.com from maintainers
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 Reporter:  jonahb    |      Owner:  macports-tickets@…
     Type:  update    |     Status:  new
 Priority:  Normal    |  Milestone:
Component:  ports     |    Version:  2.3.4
 Keywords:  haspatch  |       Port:  icoutils
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Ticket URL: <https://trac.macports.org/ticket/52740>
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