[LTP] [PATCH 1/1] ci: Add spinx related job

[Petr Vorel]

Hi Cyril,

> Hi!
> > Tested fixed branch:
> > https://github.com/pevik/ltp/actions/runs/8987761091

> > I'd like to merge soon, so that we have testing before doing more doc updates.

> Yes please, you can add my Acked-by:

Thanks, merged!

Kind regards,
Petr