[MacPorts] #70246: c-ares: Update to 1.31.0

[MacPorts]

#70246: c-ares: Update to 1.31.0
---------------------------+--------------------------
  Reporter:  sambthompson  |      Owner:  tobypeterson
      Type:  update        |     Status:  assigned
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.9.3
Resolution:                |   Keywords:  haspatch
      Port:  c-ares        |
---------------------------+--------------------------
Changes (by ryandesign):

 * keywords:   => haspatch


Comment:

 https://github.com/macports/macports-ports/pull/24675

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Ticket URL: <https://trac.macports.org/ticket/70246#comment:2>
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