[MacPorts] #52405: Update liferea to use webkit2-gtk

[MacPorts]

#52405: Update liferea to use webkit2-gtk
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  Reporter:  jeremyhu  |      Owner:  dbevans
      Type:  defect    |     Status:  assigned
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:  2.3.4
Resolution:            |   Keywords:
      Port:  liferea   |
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Comment (by dbevans):

 Currently both 1.12-rc1 and git master (1.12-rc1a) fail to build because
 of invalid gobject introspection annotations. Disabling introspection
 avoids the issue.  See attached build log. Latest working Portfile is
 [https://svn.macports.org/repository/macports/users/devans/GNOME-3/stable/dports/gnome/liferea
 here].

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Ticket URL: <https://trac.macports.org/ticket/52405#comment:2>
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