[MacPorts] #34808: UPDATE: highlight 3.9

[MacPorts]

#34808: UPDATE: highlight 3.9
------------------------------+---------------------------------------------
 Reporter:  mww@…             |       Owner:  pjenvey@…          
     Type:  update            |      Status:  new                
 Priority:  Normal            |   Milestone:                     
Component:  ports             |     Version:  2.1.1              
 Keywords:  highlight         |        Port:  highlight          
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 update highlight to version 3.9 including the missing license etc.

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Ticket URL: <https://trac.macports.org/ticket/34808>
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