[Core][Model] Enable Qwen3-TTS MRV2 and optimize the TTS pipeline (#7781)

Signed-off-by: Sy03 <1370724210@qq.com>

.buildkite/cuda/test-ready.yml

@@ -102,7 +102,7 @@ steps:
     commands:
       - |
         timeout 15m bash -c "
-                  pytest -sv tests/engine/ tests/model_executor/ tests/worker/test_batched_omni_output.py -m 'core_model and cuda' --run-level 'core_model'
+                  pytest -sv tests/engine/ tests/model_executor/ tests/worker/test_batched_omni_output.py tests/worker_v2/ -m 'core_model and cuda' --run-level 'core_model'
         "
     mirror_hardwares: l4_1