Pass qemu args at start time [willing to help]

### Description

So lima vm uses ssh tunneling for port forwards. This makes it so I can't shim local dns servers etc without overhead. I suffer that with this project, and I imagine it's because of the prior. I'd like to try another slirp solution.

I came across this:
https://github.com/containers/gvisor-tap-vsock

VPNkit looks cool, but it's not user friendly. The libslurp variants have udp issues too. This looks like what I want.

Interestingly enough, this user found the same thing I did, and was looking to do the same thing.

https://github.com/lima-vm/lima/issues/932

I'd like to do that here. Take the whole frame work you built and just see if I can shim in.

TBH, everything I need is probably right here.
https://github.com/abiosoft/colima/blob/main/qemu/qemu.go#L49

Idk how env vars work in golang. I don't think it's picking it up from the shell.

Anywho, do you like the option? I can submit a pull if this is anything.