chore(deps-dev): update cypress to v12 (#8889)

This update required changing the configuration
and test directory structure. Some tests needed
to be amended as well to compensate for new
Cypress APIs.

test/e2e-cypress/e2e/bugs/5458.cy.js

@@ -0,0 +1,22 @@
+// http://github.com/swagger-api/swagger-ui/issues/5458
+
+const expectedValue = `{
+  "foo": "custom value"
+}`
+
+describe("#5458: Swagger 2.0 `Response.examples` mappings", () => {
+  it("should render a custom example when a schema is not defined", () => {
+    cy.visit("/?url=/documents/bugs/5458.yaml")
+      .get("#operations-default-get_foo1")
+      .click()
+      .get(".model-example .highlight-code")
+      .contains(expectedValue)
+  })
+  it("should render a custom example when a schema is defined", () => {
+    cy.visit("/?url=/documents/bugs/5458.yaml")
+      .get("#operations-default-get_foo2")
+      .click()
+      .get(".model-example .highlight-code")
+      .contains(expectedValue)
+  })
+})