Upgrade vLLM version to v0.9.2 (#1652)

### What this PR does / why we need it?

This patch upgrade vLLM version to v0.9.2, this patch didn't remove the
v0.9.1 compatible code to easy review.

### Does this PR introduce _any_ user-facing change?
No

### How was this patch tested?

- vLLM version: v0.9.1
- vLLM main:
14601f5fba
- Accuracy test with 0.9.2:
https://github.com/vllm-project/vllm-ascend/actions/runs/16121612087

Signed-off-by: Yikun Jiang <yikunkero@gmail.com>

.github/workflows/accuracy_test.yaml

@@ -37,6 +37,7 @@ on:
         # Current supported vLLM versions
         options:
           - main
+          - v0.9.2
           - v0.9.1
           - v0.7.3
       vllm-ascend-version:
@@ -163,7 +164,7 @@ jobs:
           repository: vllm-project/vllm
           path: ./vllm-empty
           # Please also update this when bump matched version
-          ref: ${{ github.event.inputs.vllm-version || 'v0.9.1' }}
+          ref: ${{ github.event.inputs.vllm-version || 'v0.9.2' }}
 
       - name: Install vllm-project/vllm from source
         working-directory: ./vllm-empty