[MacPorts] #53851: Add target that bumps version and checksum

[MacPorts]

#53851: Add target that bumps version and checksum
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  Reporter:  l2dy         |      Owner:
      Type:  enhancement  |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  base         |    Version:
Resolution:               |   Keywords:
      Port:               |
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Comment (by Schamschula):

 Just be mindful that numerous ports have checksums for multiple files. I
 personally use a python script to automatically update checksums, but this
 script has a list of which Portfiles need to be updated manually.

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Ticket URL: <https://trac.macports.org/ticket/53851#comment:1>
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