[Test] skip oom test case for issue #4285 (#4311)

Signed-off-by: zhumingjue <zhumingjue@huawei.com>

tests/dfx/reliability/test_reliability_qwen3_omni.py

@@ -319,6 +319,7 @@ QWEN_PARAMS = create_reliability_omni_server_params(RELIABILITY_SCENARIOS, DEPLO
 
 
 @pytest.mark.slow
+@pytest.mark.skip(reason="issue#4285")
 @hardware_test(res={"cuda": "H100"}, num_cards=2)
 @pytest.mark.parametrize("omni_server_function", QWEN_PARAMS, indirect=True)
 def test_reliability_fault_gpu_oom_error_contract_consistent_chat_speech(
@@ -387,6 +388,7 @@ def test_reliability_fault_gpu_oom_error_contract_consistent_chat_speech(
 
 
 @pytest.mark.slow
+@pytest.mark.skip(reason="issue#4285")
 @hardware_test(res={"cuda": "H100"}, num_cards=2)
 @pytest.mark.parametrize("omni_server_function", QWEN_PARAMS, indirect=True)
 def test_reliability_fault_gpu_oom_chat_large_payload_failure(omni_server_function, openai_client_function) -> None:
@@ -429,6 +431,7 @@ def test_reliability_fault_gpu_oom_chat_large_payload_failure(omni_server_functi
 
 
 @pytest.mark.slow
+@pytest.mark.skip(reason="issue#4285")
 @hardware_test(res={"cuda": "H100"}, num_cards=2)
 @pytest.mark.parametrize("omni_server_function", QWEN_PARAMS, indirect=True)
 def test_reliability_fault_gpu_oom_concurrent_pressure_failure(omni_server_function, openai_client_function) -> None:
@@ -771,7 +774,7 @@ def test_reliability_fault_process_kill_tree_with_load_fast_fail_and_cleanup(
 
 
 @pytest.mark.slow
-@pytest.mark.skip(reason="OOM injection causes the serving instance to exit")
+@pytest.mark.skip(reason="issue#4285")
 @hardware_test(res={"cuda": "H100"}, num_cards=2)
 @pytest.mark.parametrize("omni_server_function", QWEN_PARAMS, indirect=True)
 def test_reliability_fault_gpu_oom_state_converges_after_fault_removed(