Attempt to fix disputes flaky test

Author: mgascam

tests/e2e/specs/wcpay/merchant/merchant-disputes-respond.spec.ts

@@ -612,6 +612,13 @@ test.describe( 'Disputes > Respond to a dispute', () => {
 					name: 'Save for later',
 				} )
 				.click();
+
+			// Wait for the success snackbar to confirm UI acknowledged the save.
+			await expect(
+				merchantPage.locator( '.components-snackbar__content', {
+					hasText: 'Evidence saved!',
+				} )
+			).toBeVisible( { timeout: 10000 } );
 		} );
 
 		await test.step( 'Go back to the payment details page', async () => {
@@ -649,7 +656,7 @@ test.describe( 'Disputes > Respond to a dispute', () => {
 					merchantPage.getByTestId(
 						'dispute-challenge-product-type-selector'
 					)
-				).toHaveValue( 'offline_service' );
+				).toHaveValue( 'offline_service', { timeout: 5000 } );
 			}
 		);
 	} );