Update Python inlined files: 3.12.7 (4.5)

Author: qunaibit

graalpython/com.oracle.graal.python.cext/src/abstract.c

@@ -526,18 +526,12 @@ _Py_add_one_to_index_C(int nd, Py_ssize_t *index, const Py_ssize_t *shape)
 Py_ssize_t
 PyBuffer_SizeFromFormat(const char *format)
 {
-    PyObject *structmodule = NULL;
     PyObject *calcsize = NULL;
     PyObject *res = NULL;
     PyObject *fmt = NULL;
     Py_ssize_t itemsize = -1;
 
-    structmodule = PyImport_ImportModule("struct");
-    if (structmodule == NULL) {
-        return itemsize;
-    }
-
-    calcsize = PyObject_GetAttrString(structmodule, "calcsize");
+    calcsize = _PyImport_GetModuleAttrString("struct", "calcsize");
     if (calcsize == NULL) {
         goto done;
     }
@@ -558,7 +552,6 @@ PyBuffer_SizeFromFormat(const char *format)
     }
 
 done:
-    Py_DECREF(structmodule);
     Py_XDECREF(calcsize);
     Py_XDECREF(fmt);
     Py_XDECREF(res);