[MacPorts] #69900: graphviz: update to 11.0.0

[MacPorts]

#69900: graphviz: update to 11.0.0
------------------------+----------------------
 Reporter:  mohd-akram  |      Owner:  (none)
     Type:  update      |     Status:  new
 Priority:  Normal      |  Milestone:
Component:  ports       |    Version:
 Keywords:              |       Port:  graphviz
------------------------+----------------------
 https://gitlab.com/graphviz/graphviz/-/blob/main/CHANGELOG.md#1100--
 2024-04-28

-- 
Ticket URL: <https://trac.macports.org/ticket/69900>
MacPorts <https://www.macports.org/>
Ports system for macOS