🐞 fix(scheme): Fixed scheme randomly_assign_classes

Seems `random.sample()` in python 3.12 changed that need the `populaton` arg to be a sequence

data/utils/schemes/randomly_assign_classes.py

@@ -27,8 +27,9 @@ def randomly_assign_classes(
     data_idx_for_each_label = {i: np.where(targets == i)[0].tolist() for i in label_set}
     assigned_labels = []
     selected_times = {i: 0 for i in label_set}
+    label_sequence = sorted(label_set)
     for i in range(client_num):
-        sampled_labels = random.sample(label_set, class_num)
+        sampled_labels = random.sample(label_sequence, class_num)
         assigned_labels.append(sampled_labels)
         for j in sampled_labels:
             selected_times[j] += 1