[MacPorts] #42075: update py-chaco and related enthought ports

[MacPorts]

#42075: update py-chaco and related enthought ports
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  Reporter:  jjstickel@…                         |      Owner:  macports-
      Type:  update                              |  tickets@…
  Priority:  Normal                              |     Status:  new
 Component:  ports                               |  Milestone:
Resolution:                                      |    Version:  2.2.1
      Port:  py-chaco py-enable py-blockcanvas   |   Keywords:  maintainer
  py-etsdevtools py-scimath                      |  haspatch
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Comment (by mojca@…):

 `py-blockcanvas` committed in r115811.

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Ticket URL: <https://trac.macports.org/ticket/42075#comment:10>
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