Fix potential leak of action

src/vs/workbench/contrib/extensions/electron-browser/extensionsList.ts

@@ -116,7 +116,7 @@ export class Renderer implements IPagedRenderer<IExtension, ITemplateData> {
 		const extensionContainers: ExtensionContainers = this.instantiationService.createInstance(ExtensionContainers, [...actions, ...widgets, disabledLabelAction]);
 
 		actionbar.push(actions, actionOptions);
-		const disposables = combinedDisposable(...actions, ...widgets, actionbar, extensionContainers);
+		const disposables = combinedDisposable(...actions, ...widgets, actionbar, extensionContainers, disabledLabelAction);
 
 		return {
 			root, element, icon, name, installCount, ratings, author, description, disposables: [disposables], actionbar,