[CI] Set L2 & L3 tests running conditions. (#1344)

Signed-off-by: Alicia <115451386+congw729@users.noreply.github.com>

tests/e2e/online_serving/test_qwen3_omni.py

@@ -3,10 +3,6 @@ E2E Online tests for Qwen3-Omni model with video input and audio output.
 """
 
 import os
-
-os.environ["VLLM_WORKER_MULTIPROC_METHOD"] = "spawn"
-os.environ["VLLM_TEST_CLEAN_GPU_MEMORY"] = "0"
-
 from pathlib import Path
 
 import pytest
@@ -21,6 +17,10 @@ from tests.conftest import (
 from tests.utils import hardware_test
 from vllm_omni.platforms import current_omni_platform
 
+os.environ["VLLM_WORKER_MULTIPROC_METHOD"] = "spawn"
+os.environ["VLLM_TEST_CLEAN_GPU_MEMORY"] = "0"
+
+
 models = ["Qwen/Qwen3-Omni-30B-A3B-Instruct"]
 
 
@@ -114,7 +114,7 @@ def test_mix_to_text_audio_001(omni_server, openai_client) -> None:
         "messages": messages,
         "stream": True,
         "key_words": {
-            "audio": ["water", "chirping"],
+            "audio": ["water", "chirping", "crackling"],
             "image": ["square", "quadrate"],
         },
     }

tests/e2e/stage_configs/qwen3_omni_ci.yaml

@@ -86,6 +86,7 @@ stage_args:
     max_num_batched_tokens: 100000
     hf_config_name: thinker_config
     async_scheduling: false
+    load_format: dummy
   engine_input_source: [1]
   custom_process_input_func: vllm_omni.model_executor.stage_input_processors.qwen3_omni.talker2code2wav
   final_output: true