[MacPorts] #45042: Update to Groovy 2.3.6

[MacPorts]

#45042: Update to Groovy 2.3.6
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 Reporter:  nils@…  |      Owner:  macports-tickets@…
     Type:  update  |     Status:  new
 Priority:  Normal  |  Milestone:
Component:  ports   |    Version:  2.3.1
 Keywords:          |       Port:  groovy
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 The groovy port is currently at version 2.2.1, while 2.3.6 is the latest
 version of Groovy. Version 2.3.0 introduced official support for JDK 8,
 traits and much more: http://groovy.codehaus.org/Groovy+2.3+release+notes

 This patch updates the port to Groovy 2.3.6.

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