[Nightly] Use Qwen repo for qwen3-next (#6064)

### What this PR does / why we need it?
Use Qwen repo for qwen3-next to make nightly test happy. see
https://github.com/vllm-project/vllm-ascend/actions/runs/21179025996/job/60915871441
### Does this PR introduce _any_ user-facing change?

### How was this patch tested?

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

Signed-off-by: wangli <wangli858794774@gmail.com>

tests/e2e/nightly/single_node/models/test_qwen3_next.py

@@ -10,7 +10,7 @@ from tests.e2e.conftest import RemoteOpenAIServer
 from tools.aisbench import run_aisbench_cases
 
 MODELS = [
-    "vllm-ascend/Qwen3-Next-80B-A3B-Instruct",
+    "Qwen/Qwen3-Next-80B-A3B-Instruct",
 ]
 
 MODES = ["aclgraph"]