AT:

• the current version data generator is used during the upgrade-optimize-data test as well
• the data generation is performed before the post migration tests are executed

Notes:

• This serves two purposes:
  1. to actually verify the current versions data generator is working correctly
  2. that report creation works correctly after upgrading to the latest version
• with OPT-1789 the current 2.5.0 generator implementation broke, it needs to be adjusted to the new rest api, see https://github.com/camunda/camunda-optimize/wiki/Reports#create-a-report