[MacPorts] #52015: Upgrade pari to 2.7.6

[MacPorts]

#52015: Upgrade pari to 2.7.6
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 Reporter:  watsonbladd@…  |      Owner:  macports-tickets@…
     Type:  defect         |     Status:  new
 Priority:  Normal         |  Milestone:
Component:  ports          |    Version:  2.3.4
 Keywords:                 |       Port:  pari
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 Attached is a diff that upgrades Pari to the stable version

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Ticket URL: <https://trac.macports.org/ticket/52015>
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