[MacPorts] #45042: Update to Groovy 2.3.6

[MacPorts]

#45042: Update to Groovy 2.3.6
---------------------+---------------------------------
  Reporter:  nils@…  |      Owner:  macports-tickets@…
      Type:  update  |     Status:  new
  Priority:  Normal  |  Milestone:
 Component:  ports   |    Version:
Resolution:          |   Keywords:  haspatch maintainer
      Port:  groovy  |
---------------------+---------------------------------
Changes (by mf2k@…):

 * keywords:   => haspatch maintainer
 * version:  2.3.1 =>


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Ticket URL: <https://trac.macports.org/ticket/45042#comment:1>
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