[MacPorts] #69402: cabal: use current version of Python for documentation

[MacPorts]

#69402: cabal: use current version of Python for documentation
-------------------------+--------------------
 Reporter:  Schamschula  |      Owner:  (none)
     Type:  update       |     Status:  new
 Priority:  Normal       |  Milestone:
Component:  ports        |    Version:  2.9.1
 Keywords:               |       Port:  cabal
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 I ran my update script, and to my surprise, I found nearly 50 Python 3.10
 packages being reinstalled.

 I prefer to only use the current and the one preceding version of Python.

 Please update!

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Ticket URL: <https://trac.macports.org/ticket/69402>
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