[MacPorts] #69580: KeePassXC: update to 2.7.7

[MacPorts]

#69580: KeePassXC: update to 2.7.7
----------------------------+---------------------------
  Reporter:  contextnerror  |      Owner:  contextnerror
      Type:  update         |     Status:  closed
  Priority:  Normal         |  Milestone:
 Component:  ports          |    Version:
Resolution:  fixed          |   Keywords:  haspatch
      Port:  KeePassXC      |
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Comment (by contextnerror):

 One other thing of note: the new passkey feature requires qt 5.12. Should
 the minimum qt for the entire port be raised, or should it be broken off
 into a different variant or conditional check?

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Ticket URL: <https://trac.macports.org/ticket/69580#comment:12>
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