Fix VulnerabilityStateDropdown spec

ee/spec/frontend/vulnerabilities/vulnerability_state_dropdown_spec.js

@@ -72,7 +72,7 @@ describe('Vulnerability state dropdown component', () => {
   });
 
   describe('tests that use the default wrapper', () => {
-    beforeEach(createWrapper);
+    beforeEach(() => createWrapper());
 
     it('the save button should be enabled/disabled based on if the selected item has changed or not', () => {
       const originalItem = selectedItem();