Fix ftbfs on Fedora 34

error: ordered comparison of pointer with integer zero ('PyObject*' {aka '_object*'} and 'in ')

Signed-off-by: François Andriot <francois.andriot@free.fr>

sip/qt/qpainter.sip

@@ -289,7 +289,7 @@ public:
 
 			do
 			{
-				if (PyList_SET_ITEM(sipRes,len,PyInt_FromLong((long)*tp)) < 0)
+				if (PyList_SetItem(sipRes,len,PyInt_FromLong((long)*tp)) < 0)
 				{
 					Py_DECREF(sipRes);
 					sipIsErr = 1;
@@ -612,7 +612,7 @@ public:
 
 			do
 			{
-				if (PyList_SET_ITEM(sipRes,len,PyInt_FromLong((long)*tp)) < 0)
+				if (PyList_SetItem(sipRes,len,PyInt_FromLong((long)*tp)) < 0)
 				{
 					Py_DECREF(sipRes);
 					sipIsErr = 1;