[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 ryandesign):

 I use [https://github.com/ryandesign/macports-user-
 ryandesign/blob/master/scripts/portcheckup my portcheckup script to do
 this], though I have some local changes that haven't been committed yet.

 Just "bumping" checksums is seldom desired; more work is needed to handle
 that situation correctly; see PortfileRecipes#stealth-updates.

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Ticket URL: <https://trac.macports.org/ticket/53851#comment:3>
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