Replace underscore with lodash in dependencies

This commit replaces all instances of underscore functions within
/ee/assets/javascripts/dependencies and it's corresponding spec folder.

ee/app/assets/javascripts/dependencies/components/dependency_license_links.vue

 <script>
-import { uniqueId } from 'underscore';
+import { uniqueId } from 'lodash';
 
 import { GlButton, GlLink, GlModal, GlModalDirective, GlIntersperse } from '@gitlab/ui';
 import { sprintf, s__ } from '~/locale';

ee/spec/frontend/dependencies/store/modules/list/actions_spec.js

-import _ from 'underscore';
+import { sortBy } from 'lodash';
 import axios from 'axios';
 import MockAdapter from 'axios-mock-adapter';
 import testAction from 'helpers/vuex_action_helper';
@@ -132,8 +132,9 @@ describe('Dependencies actions', () => {
   describe('fetchDependencies', () => {
     const dependenciesPackagerDescending = {
       ...mockDependenciesResponse,
-      dependencies: _.sortBy(mockDependenciesResponse.dependencies, 'packager').reverse(),
+      dependencies: sortBy(mockDependenciesResponse.dependencies, 'packager').reverse(),
     };
+
     let state;
     let mock;