Fix lupdate issues

Change-Id: I1971f74a54e4afe2d106c105f6b38f415bef488f
Reviewed-by: hjk <hjk@qt.io>
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@qt.io>

src/plugins/incredibuild/commandbuilderaspect.h

@@ -37,6 +37,8 @@ namespace Internal {
 
 class CommandBuilderAspect final : public Utils::BaseAspect
 {
+    Q_OBJECT
+
 public:
     explicit CommandBuilderAspect(ProjectExplorer::BuildStep *step);
     ~CommandBuilderAspect() final;