[MacPorts] #53475: gdal: Update to 2.1.3

[MacPorts]

#53475: gdal: Update to 2.1.3
------------------------+--------------------
 Reporter:  ryandesign  |      Owner:  Veence
     Type:  update      |     Status:  new
 Priority:  Normal      |  Milestone:
Component:  ports       |    Version:
 Keywords:              |       Port:  gdal
------------------------+--------------------
 gdal should be updated:

 {{{
 $ port livecheck gdal
 gdal seems to have been updated (port version: 2.1.2, new version: 2.1.3)
 }}}

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Ticket URL: <https://trac.macports.org/ticket/53475>
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