[MacPorts] #48903: Bump graph-tool version to 2.6

[MacPorts]

#48903: Bump graph-tool version to 2.6
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  Reporter:  tiago@…        |      Owner:  mmoll@…
      Type:  update         |     Status:  closed
  Priority:  Normal         |  Milestone:
 Component:  ports          |    Version:
Resolution:  fixed          |   Keywords:
      Port:  py-graph-tool  |
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Changes (by mmoll@…):

 * status:  new => closed
 * resolution:   => fixed


Comment:

 Update to version 2.7 in r140341.

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Ticket URL: <https://trac.macports.org/ticket/48903#comment:3>
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