Podman support

[walter-bd]

I added basic support so that llm-sandbox can be used with podman as well.
You still need to add the dependency for it, which is podman="^5.2.0", to the pyproject.toml.

[vndee]

Hey @walter-bd, can you fix pylint to pass the CI? Just need to use make lint or pre-commit run --all-files to find out which is missing.

[walter-bd]

Done, I took the liberty to add the dependency as well.

[vndee]

Yeah, thanks @walter-bd for your contribution.