[CI] Upgrade CANN to 8.5.0 (#6070)

### What this PR does / why we need it?
1. Upgrade CANN to 8.5.0
2. move triton-ascend 3.2.0 to requirements

note: we skipped the two failed e2e test, see
https://github.com/vllm-project/vllm-ascend/issues/6076 for more detail.
We'll fix it soon.


### How was this patch tested?
Closes: https://github.com/vllm-project/vllm-ascend/issues/5494

- vLLM version: v0.13.0
- vLLM main:
d68209402d

---------

Signed-off-by: wangxiyuan <wangxiyuan1007@gmail.com>

tests/e2e/nightly/multi_node/scripts/run.sh

@@ -125,33 +125,13 @@ install_extra_components() {
     echo "====> Extra components installation completed"
 }
 
-install_triton_ascend() {
-    echo "====> Installing triton_ascend"
+install_clang() {
+    echo "====> Installing clang-15"
     apt-get update && apt-get install -y clang-15
     update-alternatives --install /usr/bin/clang clang /usr/bin/clang-15 20
     update-alternatives --install /usr/bin/clang++ clang++ /usr/bin/clang++-15 20
     clang -v
-
-    BISHENG_NAME="Ascend-BiSheng-toolkit_aarch64_20260105.run"
-    BISHENG_URL="https://vllm-ascend.obs.cn-north-4.myhuaweicloud.com/vllm-ascend/${BISHENG_NAME}"
-
-    if ! wget -q -O "${BISHENG_NAME}" "${BISHENG_URL}"; then
-        echo "Failed to download ${BISHENG_NAME}"
-        return 1
-    fi
-    chmod +x "${BISHENG_NAME}"
-
-    if ! "./${BISHENG_NAME}" --install; then
-        rm -f "${BISHENG_NAME}"
-        echo "Failed to install ${BISHENG_NAME}"
-        return 1
-    fi
-    rm -f "${BISHENG_NAME}"
-
-    export PATH=/usr/local/Ascend/tools/bishengir/bin:$PATH
-    which bishengir-compile
-    python3 -m pip install triton-ascend==3.2.0
-    echo "====> Triton ascend installation completed"
+    echo "====> Clang-15 installation completed"
 }
 
 kill_npu_processes() {
@@ -181,7 +161,7 @@ main() {
     check_npu_info
     check_and_config
     show_vllm_info
-    install_triton_ascend
+    install_clang
     if [[ "$CONFIG_YAML_PATH" == *"DeepSeek-V3_2-Exp-bf16.yaml" ]]; then
         install_extra_components
     fi