[MacPorts] #61149: wkhtmltopdf: update to 0.12.6

[MacPorts]

#61149: wkhtmltopdf: update to 0.12.6
--------------------------+--------------------
  Reporter:  nickgaya     |      Owner:  (none)
      Type:  update       |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:
      Port:  wkhtmltopdf  |
--------------------------+--------------------

Comment (by mf2k):

 In the future, please add the port maintainer(s) to Cc ({{{port info
 --maintainers wkhtmltopdf}}}), if any.

-- 
Ticket URL: <https://trac.macports.org/ticket/61149#comment:2>
MacPorts <https://www.macports.org/>
Ports system for macOS