[MacPorts] #56604: libgit2 @0.26.3: update to 0.27.1

[MacPorts]

#56604: libgit2 @0.26.3: update to 0.27.1
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 Reporter:  l2dy      |      Owner:  dbevans
     Type:  update    |     Status:  assigned
 Priority:  Normal    |  Milestone:
Component:  ports     |    Version:
 Keywords:  security  |       Port:  libgit2
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Ticket URL: <https://trac.macports.org/ticket/56604>
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