[MacPorts] #69212: taglib: update to 2.0

[MacPorts]

#69212: taglib: update to 2.0
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 Reporter:  barracuda156  |      Owner:  ryandesign
     Type:  update        |     Status:  assigned
 Priority:  Normal        |  Milestone:
Component:  ports         |    Version:  2.9.0
 Keywords:                |       Port:  taglib
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 Perhaps update `taglib` to the current version? For archaic systems I can
 test on my end :)

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Ticket URL: <https://trac.macports.org/ticket/69212>
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