Running filebench in gVisor

### Description

I am trying to run some filesystem metadata stress tests using Filebench(https://github.com/filebench/filebench) on gVisor. For the experiments, I need to turn off address randomization using `echo 0 > /proc/sys/kernel/randomize_va_space`. I understand that I cannot access or modify this from gVisor. This has been an issue in Filebench for some time (https://github.com/filebench/filebench/issues/163 and https://github.com/filebench/filebench/issues/112) and I am not sure if they are going to fix it. I was wondering if is there any workaround within gVisor that I can do for this to work?

### Is this feature related to a specific bug?

_No response_

### Do you have a specific solution in mind?

_No response_