Fix CTF with namespace build

Include moc must be outside the namespace.

Pick-to: 6.5
Change-Id: Ibdd539b5fdd8ab4aeb0019bcbb62d5702c310065
Reviewed-by: Antti Määttä <antti.maatta@qt.io>
(cherry picked from commit 0bbb2f6981d3109b1e1e20639b88c6a05e6798e3)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

src/plugins/tracing/qctfplugin.cpp

@@ -58,6 +58,6 @@ private:
     bool *m_shutdown = nullptr;
 };
 
-#include "qctfplugin.moc"
-
 QT_END_NAMESPACE
+
+#include "qctfplugin.moc"