[3.7] Fix a possible crash due to PyType_FromSpecWithBases() (GH-10304) (GH-13495)

If the PyObject_MALLOC() call failed in PyType_FromSpecWithBases(),
PyObject_Free() would be called on a static string in type_dealloc().
(cherry picked from commit 0613c1e481440aa8f54ba7f6056924c175fbcc13)

Co-authored-by: Zackery Spytz <zspytz@gmail.com>
1 file changed