[MacPorts] #66785: cairo, cairo-devel: Update to 1.17.6

[MacPorts]

#66785: cairo, cairo-devel: Update to 1.17.6
---------------------------------+------------------------
  Reporter:  Jehan               |      Owner:  ryandesign
      Type:  update              |     Status:  accepted
  Priority:  Normal              |  Milestone:
 Component:  ports               |    Version:
Resolution:                      |   Keywords:
      Port:  cairo, cairo-devel  |
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Comment (by ryandesign):

 In [changeset:"59f1ebaa84521c04c79e9c684662f4d3f8b426f3/macports-ports"
 59f1ebaa84521c04c79e9c684662f4d3f8b426f3/macports-ports] (master):
 {{{
 #!ConfigurableCommitTicketReference repository="macports-ports"
 revision="59f1ebaa84521c04c79e9c684662f4d3f8b426f3"
 cairo-devel: Use legacysupport for memmem

 See: https://trac.macports.org/ticket/66785
 }}}

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Ticket URL: <https://trac.macports.org/ticket/66785#comment:5>
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