Fix false positives in consent-banner.cy.ts cypress tests

[eastandwestwind]

@allisonking reported that the following is running on every test, even though it should be scoped to one test:

Cypress.on("fail", (error) => {
          if (error.message.indexOf("Timed out retrying") !== 0) {
            throw error;
          }
        });

[allisonking]

Closed by #3487

[Roger-Ethyca]

moving to done