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

[MacPorts]

#48903: Bump graph-tool version to 2.6
----------------------------+---------------------
  Reporter:  tiago@…        |      Owner:  tiago@…
      Type:  update         |     Status:  new
  Priority:  Normal         |  Milestone:
 Component:  ports          |    Version:
Resolution:                 |   Keywords:
      Port:  py-graph-tool  |
----------------------------+---------------------
Changes (by mf2k@…):

 * owner:  macports-tickets@… => tiago@…
 * cc: mmoll@… (added)
 * version:  2.3.3 =>
 * type:  defect => update


Comment:

 Thanks. In the future, please Cc the port maintainers ({{{port info
 --maintainers py-graph-tool}}}), if any.

-- 
Ticket URL: <https://trac.macports.org/ticket/48903#comment:1>
MacPorts <https://www.macports.org/>
Ports system for OS X