[MacPorts] #60539: add support for versions to `port bump`

[MacPorts]

#60539: add support for versions to `port bump`
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  Reporter:  lhaeger      |      Owner:  (none)
      Type:  enhancement  |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  base         |    Version:
Resolution:               |   Keywords:
      Port:               |
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Comment (by kencu):

 And then automatically generate a PR and run tests builds on the CI
 system, like homebrew's bot does.

 then you just have to hit "commit" if you like it.

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Ticket URL: <https://trac.macports.org/ticket/60539#comment:2>
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