[CI] add hf-token for llama model download

Signed-off-by: MengqingCao <cmq0113@163.com>

Author: MengqingCao

.github/workflows/vllm_ascend_test.yaml

@@ -146,6 +146,8 @@ jobs:
               - "vllm_ascend/patch/patch_multi_step_worker.py"
 
       - name: Run vllm-project/vllm-ascend key feature test
+        env:
+          HF_TOKEN: ${{ secrets.HF_TOKEN }}
         if: steps.filter.outputs.speculative_tests_changed
         run: |
           pytest -sv tests/spec_decode