ci: ArgumentParser receives the args from the main parameters

ci: ArgumentParser receives the args from the main parameters

Change the main function to receive the args parameter from
sys.argv[1:]. The args parameter will be passed to the
ArgumentParser.parse_args() function as argument.

This change provides an easier  main() function signature to use
with pythonic testsuites.

Signed-off-by: Pablo Saavedra <psaavedra@igalia.com>
Reviewed-by: Alexandros Frantzis <alexandros.frantzis@collabora.com>
Reviewed-by: Andres Gomez <agomez@igalia.com>
Reviewed-by: Rohan Garg <rohan.garg@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4916>