[MacPorts] #61373: aubio: update to 0.4.9

[MacPorts]

#61373: aubio: update to 0.4.9
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 Reporter:  grr     |      Owner:  (none)
     Type:  defect  |     Status:  new
 Priority:  Normal  |  Milestone:
Component:  ports   |    Version:
 Keywords:          |       Port:
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 The current macports version, 0.4.6_1, seems to be missing the main
 program binary 'aubio' as well as 'aubiocut', though the manpages are
 present.

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Ticket URL: <https://trac.macports.org/ticket/61373>
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