[MacPorts] #50228: py-nio: use compilers portgroup

[MacPorts]

#50228: py-nio: use compilers portgroup
-------------------------+--------------------
 Reporter:  dstrubbe@…   |      Owner:  petr@…
     Type:  enhancement  |     Status:  new
 Priority:  Normal       |  Milestone:
Component:  ports        |    Version:  2.3.4
 Keywords:  haspatch     |       Port:  py-nio
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 py-nio should use the compilers portgroup instead of the obsolete recipe
 for Fortran variants, as in the attached patch. It can also be updated to
 version 1.4.1.

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Ticket URL: <https://trac.macports.org/ticket/50228>
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