[MacPorts] #63554: py-fabio: @0.9.0: upstream version update and allow python 38/39

[MacPorts]

#63554: py-fabio: @0.9.0: upstream version update and allow python 38/39
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 Reporter:  joefowler  |      Owner:  (none)
     Type:  update     |     Status:  new
 Priority:  Normal     |  Milestone:
Component:  ports      |    Version:
 Keywords:  haspatch   |       Port:  py-fabio
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 py-fabio needs two updates:
 1. [https://github.com/silx-kit/fabio/releases Upstream version] is now
 0.12 (as of July 2021)
 2. Portfile should allow operation with python 3.8 and 3.9.

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Ticket URL: <https://trac.macports.org/ticket/63554>
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