[Test] add a new Qwen3-32b-int8 test case with feature_stack3 (#3676)

### What this PR does / why we need it?
This PR add a new Qwen3-32b-int8 test case for nightly test. This test
case mainly test the performance and accuracy of Qwen3-32b-int8 with a
new feature.

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

### How was this patch tested?
By running the test.

- vLLM version: v0.11.0rc3
- vLLM main: https://github.com/vllm-project/vllm/commit/v0.11.0

---------

Signed-off-by: root <root@hostname-2pbfv.foreman.pxe>
Co-authored-by: root <root@hostname-2pbfv.foreman.pxe>

.github/workflows/vllm_ascend_test_nightly.yaml

@@ -98,6 +98,17 @@ jobs:
       runner: ${{ matrix.os }}
       image: swr.cn-southwest-2.myhuaweicloud.com/base_image/ascend-ci/cann:8.2.rc1-a3-ubuntu22.04-py3.11
       tests: tests/e2e/nightly/models/test_deepseek_r1_w8a8_eplb.py
+  qwen3-32b-int8-a3-feature-stack3:
+    if: contains(github.event.pull_request.labels.*.name, 'run-nightly')
+    strategy:
+      matrix:
+        os: [ linux-aarch64-a3-4 ]
+    uses: ./.github/workflows/_e2e_nightly.yaml
+    with:
+      vllm: v0.11.0
+      runner: ${{ matrix.os }}
+      image: swr.cn-southwest-2.myhuaweicloud.com/base_image/ascend-ci/cann:8.2.rc1-a3-ubuntu22.04-py3.11
+      tests: tests/e2e/nightly/features/test_qwen3_32b_int8_a3_feature_stack3.py
   qwen2-5-vl-7b:
     if: contains(github.event.pull_request.labels.*.name, 'run-nightly')
     strategy: