[MacPorts] #51945: icu @55.1 Update icu to current 57.1

[MacPorts]

#51945: icu @55.1 Update icu to current 57.1
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  Reporter:  trm70@…  |      Owner:  ryandesign@…
      Type:  update   |     Status:  new
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:
Resolution:           |   Keywords:
      Port:  icu      |
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Changes (by devans@…):

 * cc: ryandesign@… (removed)


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Ticket URL: <https://trac.macports.org/ticket/51945#comment:2>
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