CI: waive test_llm_multi_node_with_postproc (NVIDIA#4977)

Signed-off-by: QI JUN <[email protected]>

Author: QiJune

tests/unittest/llmapi/test_llm_multi_gpu.py

@@ -334,6 +334,7 @@ def test_llm_multi_node_pytorch(nworkers: int):
 
 @skip_single_gpu
 def test_llm_multi_node_with_postproc():
+    pytest.skip("https://nvbugspro.nvidia.com/bug/5327706")
     nworkers = 2
     test_case_file = os.path.join(os.path.dirname(__file__),
                                   "run_llm_with_postproc.py")