[Bugfix] Stabilize NIXL ownership test claim queries (#7870)

Signed-off-by: zengchuang-hw <zengchuang1005@gmail.com>

tests/distributed/omni_connectors/test_nixl_connector.py

@@ -350,6 +350,7 @@ def test_zero_byte_leaves_roundtrip_without_native_descriptors(producer, consume
 
 @pytest.mark.parametrize("direct", [False, True])
 @pytest.mark.parametrize("outcome", ["done", "error", "timeout", "unknown"])
+@pytest.mark.usefixtures("reliable_claim_queries")
 def test_read_ownership_through_terminal_and_deferred_paths(
     producer, consumer, copying_native_agent, monkeypatch, direct, outcome
 ):