[MacPorts] #44196: py-markupsafe: drop py31, py32 subports; update to 0.23

[MacPorts]

#44196: py-markupsafe: drop py31, py32 subports; update to 0.23
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  Reporter:  aronnax@…      |      Owner:  macports-tickets@…
      Type:  enhancement    |     Status:  new
  Priority:  Normal         |  Milestone:
 Component:  ports          |    Version:
Resolution:                 |   Keywords:  haspatch
      Port:  py-markupsafe  |
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Comment (by aronnax@…):

 Is there an automatic way to trace out which ports recursively depend upon
 py31-markupsafe or py32-markupsafe? {{{port rdependents}}} only finds
 ports that are currently installed.

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Ticket URL: <https://trac.macports.org/ticket/44196#comment:5>
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