Docs: Respect SELinux with podman for docker mount (#12102)
Tested on Fedora 40 with Podman 5.1.1 and ruff "0.5.0" and "latest".
source: https://unix.stackexchange.com/q/651198
## Error without fix
````
$ podman run --rm -it -v .:/io ghcr.io/astral-sh/ruff:latest check
error: Failed to initialize cache at /io/.ruff_cache: Permission denied (os error 13)
warning: Encountered error: Permission denied (os error 13)
All checks passed!
$ podman run --rm -it -v .:/io ghcr.io/astral-sh/ruff:latest format
error: Failed to initialize cache at /io/.ruff_cache: Permission denied (os error 13)
error: Encountered error: Permission denied (os error 13)
````
## Summary
Running ruff by using a docker container requires `:Z` when mounting the
current directory on Fedora with SELinux and Podman.
## Test Plan
````
$ podman run --rm -it -v .:/io:Z ghcr.io/astral-sh/ruff:latest check
$ podman run --rm -it -v .:/io:Z ghcr.io/astral-sh/ruff:0.5.0 check
````
