[MacPorts] #40750: qlandkartegt: upgrade to 1.7.5

[MacPorts]

#40750: qlandkartegt: upgrade to 1.7.5
---------------------------------+--------------------------------
 Reporter:  michael.klein@…      |      Owner:  macports-tickets@…
     Type:  update               |     Status:  new
 Priority:  Normal               |  Milestone:
Component:  ports                |    Version:  2.2.0
 Keywords:  haspatch maintainer  |       Port:  qlandkartegt
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 update to latest upstream release

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Ticket URL: <https://trac.macports.org/ticket/40750>
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