fixed prop name in specs

spec/javascripts/ide/components/commit_sidebar/list_collapsed_spec.js

@@ -19,7 +19,7 @@ describe('Multi-file editor commit sidebar list collapsed', () => {
         },
         file('file2'),
       ],
-      icon: 'staged',
+      iconName: 'staged',
       title: 'Staged',
     });
 

spec/javascripts/ide/components/commit_sidebar/list_spec.js

@@ -13,7 +13,7 @@ describe('Multi-file editor commit sidebar list', () => {
     vm = createComponentWithStore(Component, store, {
       title: 'Staged',
       fileList: [],
-      icon: 'staged',
+      iconName: 'staged',
       action: 'stageAllChanges',
       actionBtnText: 'stage all',
       itemActionComponent: 'stage-button',