### What this PR does / why we need it?
Add ut for qwen3_moe.py
### Does this PR introduce _any_ user-facing change?
No.
- vLLM version: v0.10.0
- vLLM main:
18cc33dd60
Signed-off-by: huangxialu <huangxialu1@huawei.com>
### What this PR does / why we need it?
Add ut for qwen3_moe.py
### Does this PR introduce _any_ user-facing change?
No.
- vLLM version: v0.10.0
- vLLM main:
18cc33dd60
Signed-off-by: huangxialu <huangxialu1@huawei.com>