Plug-in Steps fail with 'The variable [<name>] is declared final but is reassigned'

After upgrade to UrbanCode Deploy to 7.2.2.x or higher plug-in Steps start to fail.
ref: https://www.ibm.com/support/pages/plug-steps-fail-variable-declared-final-reassigned

Could you release the slack plug-in that includes the fix to support Groovy 3.

Regards.