[CI] Skip PD hybrid attention test with different TP temporarily (#17791)

test/srt/test_disaggregation_hybrid_attention.py

@@ -153,6 +153,10 @@ class TestDisaggregationHybridAttentionMambaExtraBuffer(PDDisaggregationServerBa
         self.assertGreater(metrics["accuracy"], 0.93)
 
 
+@unittest.skipIf(
+    is_in_ci(),
+    "Temporarily disable the flaky test: tcp fallback is not stable currently.",
+)
 class TestDisaggregationHybridAttentionMambaDPDecode(PDDisaggregationServerBase):
     """Test with prefill tp=2 and decode tp=2/dp=2 with dp-attention enabled."""