[VOTE] EOL for Groovy 2.4.x

[Paul King]

Hi folks,

As per the [DISCUSS] thread[1], there is strong consensus to EOL
2.4.x. Please vote to formalize this step.

[1] https://lists.apache.org/thread/ft6l7j331xxnj2sg1c2kz1mwz45mxyn3

My vote:
+1 (binding)

Paul.