Update envirnoment table and environment folder view spec

spec/javascripts/environments/environment_table_spec.js

@@ -54,9 +54,7 @@ describe('Environment table', () => {
     });
 
     expect(vm.$el.querySelector('.js-deploy-board-row')).toBeDefined();
-    expect(
-      vm.$el.querySelector('.deploy-board-icon i').classList.contains('fa-caret-right'),
-    ).toEqual(true);
+    expect(vm.$el.querySelector('.deploy-board-icon.ic-chevron-right')).not.toBeNull();
   });
 
   it('should toggle deploy board visibility when arrow is clicked', () => {

spec/javascripts/environments/folder/environments_folder_view_spec.js

@@ -125,9 +125,7 @@ describe('Environments Folder View', () => {
     describe('deploy boards', () => {
       it('should render arrow to open deploy boards', (done) => {
         setTimeout(() => {
-          expect(
-            component.$el.querySelector('.deploy-board-icon i').classList.contains('fa-caret-right'),
-          ).toEqual(true);
+          expect(component.$el.querySelector('.deploy-board-icon.ic-chevron-right')).not.toBeNull();
           done();
         }, 0);
       });