fix: cypress (#45593)

cypress/integration/learn/challenges/backend.js

@@ -26,9 +26,15 @@ describe('Backend challenge', function () {
 
   it('does not generate unhandled errors on submission', () => {
     cy.visit(locations.index);
-    cy.get(selectors.input)
-      .type('https://example.com')
-      .type('{enter}')
+    cy.get(selectors.input).type('https://example.com');
+
+    // temporary fix until https://github.com/cypress-io/cypress/issues/20562 is fixed
+    cy.contains(`I've completed this challenge`)
+      .click()
+
+      // revert to this when it is
+      // .type('{enter}')
+
       .then(() => {
         cy.get(selectors.defaultOutput)
           .contains(runningOutput)