[MacPorts] #62165: graphviz: Update to 2.48.0

[MacPorts]

#62165: graphviz: Update to 2.48.0
---------------------------------------+----------------------
  Reporter:  jarrodmillman             |      Owner:  mascguy
      Type:  update                    |     Status:  assigned
  Priority:  Normal                    |  Milestone:
 Component:  ports                     |    Version:
Resolution:                            |   Keywords:
      Port:  graphviz, graphviz-devel  |
---------------------------------------+----------------------
Changes (by mascguy):

 * owner:  ryandesign => mascguy
 * cc: mascguy (removed)
 * cc: ryandesign (added)
 * status:  accepted => assigned


-- 
Ticket URL: <https://trac.macports.org/ticket/62165#comment:30>
MacPorts <https://www.macports.org/>
Ports system for macOS