test(engine): sentry evaluation after containing stage completes

test for CAM-3226
chore(jobExecutor): extensibility of DecrementJobRetriesCmd

- improve extensibility of DecrementJobRetriesCmd

related to #SUPPORT-1364
chore(engine/scripting): provide bindings to environment

provide bindings to environment
Initial support of IBM Informix database.
Create / drop function enabled.