Make the EE Cypress specs independent of run order #9005

Same problem as the OS suite: the EE specs pass only in the default order.

Specs that fail out of order:

• applications/applications.spec.js (Cannot read properties of undefined (reading 'id'))
• applications/device-groups.spec.js
• devices/developer-mode.spec.js (cy.click() blocked by a dialog overlay that is still open). Also failed on CI in Flaky backend tests: billing trial state, 3rd party broker topics, device APIs #8478, with the same error.
• rbac/rbac-owner-contextual.spec.js (dashboard counts and tile counts differ: found 4 or 5, expected 3)

Done when

• Each spec creates the data it needs or restores what it changes in after().
• The suite passes run alphabetically and when split into 2 or 3 groups with --spec.