fix(hil-serl): drain queue on get_last_item_from_queue (#1524)

* fix(hil-serl): drain queue on get_last_item_from_queue

* parametrize queue tests

* revert changes for Darwin

* revert parametrize queue tests

* add test_get_last_item_multiple_items_with_torch_queue

* update test_get_last_item_multiple_items_with_torch_queue

* update test_get_last_item_multiple_items_with_torch_queue

tests/utils/test_queue.py

@@ -18,6 +18,8 @@ import threading
 import time
 from queue import Queue
 
+from torch.multiprocessing import Queue as TorchMPQueue
+
 from lerobot.utils.queue import get_last_item_from_queue
 
 
@@ -46,6 +48,20 @@ def test_get_last_item_multiple_items():
     assert queue.empty()
 
 
+def test_get_last_item_multiple_items_with_torch_queue():
+    """Test getting the last item when queue has multiple items."""
+    queue = TorchMPQueue()
+    items = ["first", "second", "third", "fourth", "last"]
+
+    for item in items:
+        queue.put(item)
+
+    result = get_last_item_from_queue(queue)
+
+    assert result == "last"
+    assert queue.empty()
+
+
 def test_get_last_item_different_types():
     """Test with different data types in the queue."""
     queue = Queue()