[MacPorts] #40373: update relax to 3.0.0

[MacPorts]

#40373: update relax to 3.0.0
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  Reporter:  howarth@…  |      Owner:  macports-tickets@…
      Type:  update     |     Status:  new
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.2.0
Resolution:             |   Keywords:
      Port:  relax      |
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Comment (by mojca@…):

 Why do I have a feeling that this is a duplicate of #40341? ;)

 I could have already committed it, but I didn't want to do it without
 maintainer's permission.

 I did some other modifications in ticket #40341. Can you please check if
 you agree with those and if they work for you?

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Ticket URL: <https://trac.macports.org/ticket/40373#comment:1>
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