### What this PR does / why we need it?
This PR updates the mm param --mm-processor-cache-gb, we need it to run
the case
### Does this PR introduce _any_ user-facing change?
No
### How was this patch tested?
by running the test
- vLLM version: release/v0.13.0
- vLLM main:
ad32e3e19c
Signed-off-by: jiangyunfan1 <jiangyunfan1@h-partners.com>