[MacPorts] #69880: icu: update to 76.1 (was: icu: update to 75.1)

[MacPorts]

#69880: icu: update to 76.1
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  Reporter:  mohd-akram  |      Owner:  catap
      Type:  update      |     Status:  assigned
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:
Resolution:              |   Keywords:
      Port:  icu         |
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Description changed by mohd-akram:

Old description:

> https://github.com/unicode-org/icu/releases/tag/release-75-1

New description:

 https://github.com/unicode-org/icu/releases/tag/release-76-1

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Ticket URL: <https://trac.macports.org/ticket/69880#comment:2>
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