test(rules): import non-typed preset with require

Author: byCedric

@commitlint/rules/src/references-empty.test.ts

@@ -1,7 +1,8 @@
-import preset from 'conventional-changelog-angular';
 import parse from '@commitlint/parse';
 import {referencesEmpty} from './references-empty';
 
+const preset = require('conventional-changelog-angular');
+
 const messages = {
 	plain: 'foo: bar',
 	comment: 'foo: baz\n#1 Comment',