Fix failing unit test

- Caused by merge w/ settings subnav - useRouteMatch needs to be mocked

x-pack/plugins/enterprise_search/public/applications/workplace_search/views/groups/groups.test.tsx

@@ -5,6 +5,7 @@
  * 2.0.
  */
 
+import '../../../__mocks__/react_router';
 import '../../../__mocks__/shallow_useeffect.mock';
 import { setMockActions, setMockValues } from '../../../__mocks__/kea_logic';
 import { groups } from '../../__mocks__/groups.mock';