[MacPorts] #72531: qgis3: Update to 3.42.3

[MacPorts]

#72531: qgis3: Update to 3.42.3
---------------------------+----------------------
  Reporter:  multiquadric  |      Owner:  Veence
      Type:  update        |     Status:  assigned
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:
Resolution:                |   Keywords:
      Port:  qgis3         |
---------------------------+----------------------

Comment (by ryandesign):

 In both this ticket and [ticket:72502 the similar one about qgis3-ltr], I
 see this in the log:

 {{{
 make[2]: *** [python/core/build/_core/sip_corepart0.cpp] Error 1
 }}}

 I would expect to see another line somewhere before that explaining what
 the error was, but so far I have not been able to find such a line.

-- 
Ticket URL: <https://trac.macports.org/ticket/72531#comment:3>
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