[Doc] Add tutorials for Qwen3-VL-30B-A3B-Instruct (#5331)

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

Add tutorials for `Qwen3-VL-30B-A3B-Instruct`.

- vLLM version: release/v0.13.0
- vLLM main:
bc0a5a0c08

---------

Signed-off-by: shen-shanshan <467638484@qq.com>

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

@@ -6,7 +6,7 @@ tasks:
   metrics:
   - name: "acc,none"
     value: 0.58
-max_model_len: 8192
+max_model_len: 128000
 tensor_parallel_size: 2
 gpu_memory_utilization: 0.7
 enable_expert_parallel: True