[MacPorts] #68885: libxml2: update to 2.12.3

[MacPorts]

#68885: libxml2: update to 2.12.3
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 Reporter:  mohd-akram  |      Owner:  (none)
     Type:  update      |     Status:  new
 Priority:  Normal      |  Milestone:
Component:  ports       |    Version:
 Keywords:              |       Port:  libxml2
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Ticket URL: <https://trac.macports.org/ticket/68885>
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