[MacPorts] #33972: gtk3: update to 3.4.x

[MacPorts]

#33972: gtk3: update to 3.4.x
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 Reporter:  ryandesign@…             |       Owner:  macports-tickets@…                   
     Type:  update                   |      Status:  new                                  
 Priority:  Normal                   |   Milestone:                                       
Component:  ports                    |     Version:                                       
 Keywords:                           |        Port:  gtk3                                 
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Comment(by ryandesign@…):

 Replying to [comment:2 suv-sf@…]:
 > Latest stable gtk3 (3.4.1) requires at least upgrades of pango

 Thanks for finding out! I filed tickets #34050...

 > and '''gdk-pixbuf2'''

 ...and #34051

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Ticket URL: <https://trac.macports.org/ticket/33972#comment:5>
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