QmlDesigner: Bump version of QmlPuppet

Change-Id: I1e791e8d39e48408239e1ba980ff0751fe8278dd
Reviewed-by: Marco Bubke <marco.bubke@digia.com>

share/qtcreator/qml/qmlpuppet/qmlpuppet/qmlpuppetmain.cpp

@@ -66,7 +66,7 @@ int main(int argc, char *argv[])
 
 
     if (application.arguments().count() == 2 && application.arguments().at(1) == "--version") {
-        std::cout << 2;
+        std::cout << 3;
         return 0;
     }