fix: Ensure proper cleanup in PythonQtTestCleanup

This changes the order of cleanup operations in PythonQtTestCleanup::cleanup().
By calling PythonQt::cleanup() before checking if Python is initialized,
we ensure the proper finalization of resources.

Author: jcfr

tests/PythonQtTestCleanup.cpp

@@ -24,14 +24,13 @@ void PythonQtTestCleanup::init()
 
 void PythonQtTestCleanup::cleanup()
 {
-  // Finalize and cleanup after each test
+  // Cleanup PythonQt resources before finalizing Python
+  PythonQt::cleanup();
 
   if (Py_IsInitialized()) {
     Py_Finalize();
   }
 
-  PythonQt::cleanup();
-
   delete _helper;
   _helper = nullptr;
 }