fix(cypress): tweak to ensure an element exists before test (#7074)

test/e2e-cypress/tests/features/oas3-request-body-required.js

@@ -182,6 +182,9 @@ describe("OpenAPI 3.0 Validation for Required Request Body and Request Body Fiel
         .select("application/x-www-form-urlencoded")
         .get(".opblock-body .opblock-section .opblock-section-request-body .parameters:nth-child(2) > .parameters-col_description input")
         .should("not.have.class", "invalid")
+        // add item to get input, just an extra confirmation of non-invalid class
+        .get(".opblock-body .opblock-section .opblock-section-request-body .parameters:nth-child(4) > .parameters-col_description button")
+        .click()
         .get(".opblock-body .opblock-section .opblock-section-request-body .parameters:nth-child(4) > .parameters-col_description input")
         .should("not.have.class", "invalid")
     })