Rework:Split up cronjob.go into two sperate functions to allow testing

[Flajt]

As the title states, splitting up cronjob.go into sperate functions (maybe within a struct) to run tests by passing in an instance of the IScalewayWrapper interface.

And the e2e test needs to be removed, it's useless and screws with existing data, even if it's only in the testing enviroment.