[test]Corrected the Qwen3-Omni-30B-A3B-Instruct accuracy test configuration in nightly tests. (#5195)

### What this PR does / why we need it?
Corrected the Qwen3-Omni-30B-A3B-Instruct accuracy test configuration in
nightly tests.
link: https://github.com/vllm-project/vllm-ascend/pull/4911

- vLLM version: v0.12.0
- vLLM main:
ad32e3e19c
---------
Signed-off-by: MrZ20 <2609716663@qq.com>
Signed-off-by: root <root@LAPTOP-VQKDDVMG.localdomain>
Co-authored-by: root <root@LAPTOP-VQKDDVMG.localdomain>

.github/workflows/nightly_test_a2.yaml

@@ -125,7 +125,7 @@ jobs:
           - os: linux-aarch64-a2-4
             model_list:
               - Qwen3-Next-80B-A3B-Instruct
-              - Qwen3-VL-30B-A3B-Instruct
+              - Qwen3-Omni-30B-A3B-Instruct
     uses: ./.github/workflows/_e2e_nightly_single_node_models.yaml
     with:
       vllm: v0.13.0

tests/e2e/models/configs/Qwen3-Omni-30B-A3B-Instruct.yaml

@@ -5,7 +5,7 @@ tasks:
 - name: "mmmu_val"
   metrics:
   - name: "acc,none"
-    value: 0.52
+    value: 0.60
 max_model_len: 8192
 tensor_parallel_size: 4
 enable_expert_parallel: True