### What this PR does / why we need it? Make the test_pipeline_parallel take effect in full test of CI. ### Does this PR introduce _any_ user-facing change? NA ### How was this patch tested? NA - vLLM version: v0.11.0rc3 - vLLM main: https://github.com/vllm-project/vllm/commit/v0.11.0 --------- Signed-off-by: leo-pony <nengjunma@outlook.com>