Our epiphany got blocked by https://gitlab.gnome.org/ due to their new
AI scraping protection. We used a older User-agent that is not
regocnized by their protection and blocked us with "Access Denied.".
Nowadays Epiphany uses a dynamic user agent by default depending on the
chassis reported by systemd-hostnamed (e.g. mobile or desktop).
Fixes: 2722f6cac5 ("main/postmarketos-ui-{gnome,phosh}: less revealing epiphany user-agent (MR 1402)")
Part-of: https://gitlab.postmarketos.org/postmarketOS/pmaports/-/merge_requests/6293
[ci:skip-build]: already built successfully in CI