fix: Fix template credential setup for nodes that dont have credentials (#8208)

Fix template credential setup for templates whose workflow includes
nodes that require credentials but the workflow definition does not have
them defined. Like for example
https://n8n.io/workflows/1344-save-email-attachments-to-nextcloud/

cypress/pages/template-credential-setup.ts

@@ -1,3 +1,5 @@
+import { CredentialsModal, MessageBox } from './modals';
+
 export type TemplateTestData = {
 	id: number;
 	fixture: string;
@@ -8,8 +10,15 @@ export const testData = {
 		id: 1205,
 		fixture: 'Test_Template_1.json',
 	},
+	templateWithoutCredentials: {
+		id: 1344,
+		fixture: 'Test_Template_2.json',
+	},
 };
 
+const credentialsModal = new CredentialsModal();
+const messageBox = new MessageBox();
+
 export const getters = {
 	continueButton: () => cy.getByTestId('continue-button'),
 	skipLink: () => cy.get('a:contains("Skip")'),
@@ -33,3 +42,23 @@ export const enableTemplateCredentialSetupFeatureFlag = () => {
 		win.featureFlags.override('016_template_credential_setup', true);
 	});
 };
+
+/**
+ * Fills in dummy credentials for the given app name.
+ */
+export const fillInDummyCredentialsForApp = (appName: string) => {
+	getters.createAppCredentialsButton(appName).click();
+	credentialsModal.getters.editCredentialModal().find('input:first()').type('test');
+	credentialsModal.actions.save(false);
+	credentialsModal.actions.close();
+};
+
+/**
+ * Fills in dummy credentials for the given app name. Assumes
+ * that a confirmation message box will be shown, which will be
+ * handled.
+ */
+export const fillInDummyCredentialsForAppWithConfirm = (appName: string) => {
+	fillInDummyCredentialsForApp(appName);
+	messageBox.actions.cancel();
+};