### What this PR does / why we need it?
Sorts aclgraph batch sizes in ascending order, corresponding to vLLM
[#26016](https://github.com/vllm-project/vllm/pull/26016)
Ensures batch sizes for aclgraph are sorted ascending when aclgraph mode
is enabled, improving consistency and compatibility with later logic
that may depend on order.
### Does this PR introduce _any_ user-facing change?
None.
### How was this patch tested?
Waiting for #3886
- vLLM version: v0.11.0
- vLLM main:
2918c1b49c
Signed-off-by: Yizhou Liu <liu_yizhou@outlook.com>