[MacPorts] #57327: libgit2 @0.27.4: update to 0.27.5

[MacPorts]

#57327: libgit2 @0.27.4: update to 0.27.5
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 Reporter:  l2dy      |      Owner:  (none)
     Type:  update    |     Status:  new
 Priority:  Normal    |  Milestone:
Component:  ports     |    Version:
 Keywords:  security  |       Port:  libgit2
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 https://github.com/libgit2/libgit2/releases/tag/v0.27.5
 > This is a security release fixing the following list of issues: [...]

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Ticket URL: <https://trac.macports.org/ticket/57327>
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