[CI] Update UT CANN version to 8.5.0 for main branch (#6564)

### What this PR does / why we need it?
Update UT CANN version to 8.5.0

### Does this PR introduce _any_ user-facing change?
NA


- vLLM version: v0.15.0
- vLLM main: https://github.com/vllm-project/vllm/commit/v0.15.0

---------

Signed-off-by: leo-pony <nengjunma@outlook.com>

vllm_ascend/envs.py

@@ -35,6 +35,12 @@ env_variables: dict[str, Callable[[], Any]] = {
     # The build type of the package. It can be one of the following values:
     # Release, Debug, RelWithDebugInfo. If not set, the default value is Release.
     "CMAKE_BUILD_TYPE": lambda: os.getenv("CMAKE_BUILD_TYPE"),
+    # Whether to compile custom kernels. If not set, the default value is True.
+    # If set to False, the custom kernels will not be compiled.
+    # This configuration option should only be set to False when running UT
+    # scenarios in an environment without an NPU. Do not set it to False in
+    # other scenarios.
+    "COMPILE_CUSTOM_KERNELS": lambda: bool(int(os.getenv("COMPILE_CUSTOM_KERNELS", "1"))),
     # The CXX compiler used for compiling the package. If not set, the default
     # value is None, which means the system default CXX compiler will be used.
     "CXX_COMPILER": lambda: os.getenv("CXX_COMPILER", None),

vllm_ascend/worker/worker.py

@@ -88,6 +88,12 @@ class NPUWorker(WorkerBase):
             # Additional parameters for compatibility with vllm
             **kwargs):
         """Initialize the worker for Ascend."""
+        if not envs_ascend.COMPILE_CUSTOM_KERNELS:
+            logger.warning(
+                "COMPILE_CUSTOM_KERNELS is set to False. "
+                "In most scenarios, without custom kernels, vllm-ascend will not function correctly."
+            )
+
         # register patch for vllm
         from vllm_ascend.utils import adapt_patch
         adapt_patch()