[CI] split tests to avoid timeout (#883)

Signed-off-by: zjy0516 <riverclouds.zhu@qq.com>

tests/e2e/offline_inference/test_zimage_tensor_parallel.py

@@ -119,7 +119,7 @@ def _run_zimage_generate(
 
         return _extract_single_image([last_output]), median_time_s, peak_memory_mb
     finally:
-        m.close()
+        monitor.stop()
         cleanup_dist_env_and_memory()
 
 
@@ -160,7 +160,7 @@ def test_zimage_tensor_parallel_tp2(tmp_path: Path):
 
     mean_abs_diff, max_abs_diff = _diff_metrics(tp1_img, tp2_img)
     mean_threshold = 3e-2
-    max_threshold = 3.5e-1
+    max_threshold = 5e-1
     print(
         "Z-Image TP image diff stats (TP=1 vs TP=2): "
         f"mean_abs_diff={mean_abs_diff:.6e}, max_abs_diff={max_abs_diff:.6e}; "