[Hardware][AMD][CI/Build][Doc] Upgrade to ROCm 6.1, Dockerfile improvements, test fixes (#5422)

tests/entrypoints/test_openai_embedding.py

@@ -2,7 +2,7 @@ import openai
 import pytest
 import ray
 
-from ..utils import VLLM_PATH, RemoteOpenAIServer
+from ..utils import RemoteOpenAIServer
 
 EMBEDDING_MODEL_NAME = "intfloat/e5-mistral-7b-instruct"
 
@@ -11,7 +11,7 @@ pytestmark = pytest.mark.openai
 
 @pytest.fixture(scope="module")
 def ray_ctx():
-    ray.init(runtime_env={"working_dir": VLLM_PATH})
+    ray.init()
     yield
     ray.shutdown()