feat(python-generator): check type at module namespace comparision

Added type check to the Python module namespace comparision function.

src/jcloud_docsgen/core/python/namespaces.py

@@ -223,4 +223,4 @@ class PythonModuleNamespace(PythonNamespace):
         super().__init__(name)
 
     def __eq__(self, value: PythonModuleNamespace) -> bool:
-        return self.name == value.name
+        return isinstance(value, type(self)) and self.name == value.name