fix uncaughexception in tests

cypress/integration/rendering/errorDiagram.spec.js

@@ -1,6 +1,15 @@
 import { imgSnapshotTest } from '../../helpers/util';
 
 describe('Error Diagrams', () => {
+  beforeEach(() => {
+    cy.on('uncaught:exception', (err) => {
+      expect(err.message).to.include('Parse error');
+      // return false to prevent the error from
+      // failing this test
+      return false;
+    });
+  });
+
   it('should render a simple ER diagram', () => {
     imgSnapshotTest(
       `