[MacPorts] #53286: ImageMagick @6.9.6-6: update to 7.0.4-3 and fix livecheck

[MacPorts]

#53286: ImageMagick @6.9.6-6: update to 7.0.4-3 and fix livecheck
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  Reporter:  l2dy         |      Owner:
      Type:  update       |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:
      Port:  ImageMagick  |
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Comment (by l2dy):

 Please change the summary to 'update to 6.9.7' to make it not a duplicate.
 😉

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Ticket URL: <https://trac.macports.org/ticket/53286#comment:2>
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