[Bugfix] Accept kv_prefetch_jobs in ARDiffusionModelRunner.execute_model (#4941)

Signed-off-by: Wijnand Suijlen <wijnand.suijlen@huawei.com>

tests/ar_diffusion/test_pipeline_bridge.py

@@ -203,7 +203,7 @@ def test_failed_forward_tears_down_session(monkeypatch):
     runner.device = None
     runner._perf_e2e_times = []
 
-    def boom(self, req):
+    def boom(self, req, kv_prefetch_jobs=None):
         raise RuntimeError("layer 17 exploded")
 
     monkeypatch.setattr(DiffusionModelRunner, "execute_model", boom)