fix(mge): fix mem leak of numpy method of DeviceTensorND

GitOrigin-RevId: 06082145f6

imperative/python/src/common.cpp

@@ -142,7 +142,7 @@ void init_common(py::module m) {
             .def("numpy", [](const DeviceTensorND& self) {
                 HostTensorND hv;
                 hv.copy_from(self).sync();
-                return py::handle(
+                return py::reinterpret_steal<py::object>(
                         npy::ndarray_from_tensor(hv, npy::ShareType::TRY_SHARE));
             });