[MacPorts] #72142: XCode error when installing graphviz-gui on M1 MacOS Ventura 13.0.1

[MacPorts]

#72142: XCode error when installing graphviz-gui on M1 MacOS Ventura 13.0.1
--------------------+--------------------------
 Reporter:  i3boy   |      Owner:  (none)
     Type:  defect  |     Status:  new
 Priority:  Normal  |  Milestone:
Component:  ports   |    Version:
 Keywords:          |       Port:  graphviz-gui
--------------------+--------------------------
 sudo port install graphviz-gui
 Password: xxxxxxxx
 Error: Port graphviz-gui requires a full Xcode installation, which was not
 found on your system.
 Error: You can install Xcode from the Mac App Store or
 https://developer.apple.com/xcode/
 Error: Follow https://guide.macports.org/#project.tickets if you believe
 there
 is a bug.
 Error: Processing of port graphviz-gui failed

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Ticket URL: <https://trac.macports.org/ticket/72142>
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