closes bpo-34477: Objects/typeobject.c: Add missing NULL check to type_init() (GH-8876)

Reported by Svace static analyzer.

Objects/typeobject.c

@@ -2295,6 +2295,9 @@ type_init(PyObject *cls, PyObject *args, PyObject *kwds)
     /* Call object.__init__(self) now. */
     /* XXX Could call super(type, cls).__init__() but what's the point? */
     args = PyTuple_GetSlice(args, 0, 0);
+    if (args == NULL) {
+        return -1;
+    }
     res = object_init(cls, args, NULL);
     Py_DECREF(args);
     return res;