Following the migration made in MesaCI, reproduce it in virglrenderer.

Better error handling is more reliable.

Options:
 -L, follow location
 --retry, number of retries
 --retry-all-errors, does not fail on ALL errors, that's why there is -f
 -f, fail fast with no output at all on server errors
 --retry-delay, make curl sleep this amount of time before each retry

Signed-off-by: Sergi Blanch Torne <sergi.blanch.torne@collabora.com>
Reviewed-by: Corentin Noël <corentin.noel@collabora.com>
Part-of: <!1031>