Add a missing Py_DECREF in the sq_item slot wrapper.
Add a missing Py_DECREF in the sq_item slot wrapper.

caramucho/pybindgen,cawka/pybindgen,caramucho/pybindgen,caramucho/pybindgen,cawka/pybindgen,cawka/pybindgen,caramucho/pybindgen,cawka/pybindgen