Ark
refs https://github.com/TryGhost/Team/issues/1071 - updates tests to handle new visibility of `tiers` which uses tiers pivot table
refs https://github.com/TryGhost/Toolbox/issues/135 - Going though local utils allows to have the "withFrontend: false" flag applied only to the e2e-api test suites. This way we can gradually introduce the no-frontend change across all test suites
- These are end-to-end tests, make it clearer what they are and what they are supposed to do