The Druid test environment is already done at T317803: AQS 2.0: Extract production testing data for Druid-based endpoints. What we need is new data to be able to test editors & edits endpoints because the current environment data has not enought variety (we need, for example, data from different dates).
This is related to T336382: Edit Analytics: Create Druid test data environment (and maybe both tickets should be only one) because both services (editors and edit) will query from the same Druid dataset.