Cypress.env() was deprecated and needs to be replaced by either cy.env() or Cypress.expose()

[EikLoe]

Describe the bug

The Cypress.env() method was deprecated in version 15.10.0, see https://docs.cypress.io/api/cypress-api/env. It needs to be replaced by either cy.env() or Cypress.expose().
This concerns nearly all existing cypress tests.

Related work

• Implement e2e (end-to-end) tests via Cypress site wide #3978