CppTools: Fix qbs build.

Change-Id: Iaf68f0c9b491454faebd7a232189152d97064c42
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>

src/plugins/cpptools/cpptools.qbs

@@ -14,6 +14,7 @@ QtcPlugin {
     Depends { name: "Core" }
     Depends { name: "TextEditor" }
     Depends { name: "ProjectExplorer" }
+    Depends { name: "app_version_header" }
 
     cpp.defines: base
     Properties {