[LTP] [PATCH] ci: fix documentation build for new patches

[Petr Vorel]

Hi Andrea,

> From: Andrea Cervesato <andrea.cervesato@suse.com>

> curl command was not alligned with the ci-docker-build.yml workflow, so
> it was failing due to HTTP request error.

Thanks!
Reviewed-by: Petr Vorel <pvorel@suse.cz>

Kind regards,
Petr