Update modules/openapi-generator/src/main/resources/cpp-qt-client/HttpRequest.h.mustache

Co-authored-by: cubic-dev-ai[bot] <191113872+cubic-dev-ai[bot]@users.noreply.github.com>

Author: martonmiklos

modules/openapi-generator/src/main/resources/cpp-qt-client/HttpRequest.h.mustache

@@ -71,7 +71,7 @@ public:
     int  getHttpResponseCode() const;
 
 Q_SIGNALS:
-    void on_execution_finished({{this}}::{{prefix}}HttpRequestWorker *worker);
+    void on_execution_finished({{#cppNamespaceDeclarations}}{{this}}::{{/cppNamespaceDeclarations}}{{prefix}}HttpRequestWorker *worker);
     void downloadProgress(qint64 bytesReceived, qint64 bytesTotal);
 
 private: