chore(x11/libadwaita): Switch to GNOME Gitlab source URL.

[TomJo2000]

Should avoid a repeat of #21803

download.gnome.org/sources[...] SRCURL's are also used by an additional 67 packages.

// ~$ rg 'download.gnome.org/sources'
x11-packages/clutter-gtk/build.sh
x11-packages/clutter-gst/build.sh
x11-packages/eog/build.sh
x11-packages/gnumeric/build.sh
x11-packages/gnome-desktop4/build.sh
x11-packages/gnome-font-viewer/build.sh
x11-packages/gcr/build.sh
x11-packages/gtksourceview4/build.sh
x11-packages/libatkmm-1.6/build.sh
x11-packages/gspell/build.sh
x11-packages/gsettings-desktop-schemas/build.sh
x11-packages/gtk2-engines-murrine/build.sh
x11-packages/zenity/build.sh
x11-packages/libwnck/build.sh
x11-packages/gtkmm4/build.sh
x11-packages/rhythmbox/build.sh
x11-packages/pyatspi/build.sh
x11-packages/gtkmm3/build.sh
x11-packages/gtk2/build.sh
x11-packages/gnome-desktop3/build.sh
x11-packages/gtk4/build.sh
x11-packages/libgedit-tepl/build.sh
x11-packages/evince/build.sh
x11-packages/libpeas/build.sh
x11-packages/orca/build.sh
x11-packages/clutter/build.sh
x11-packages/goffice/build.sh
x11-packages/libgedit-amtk/build.sh
x11-packages/libnotify/build.sh
x11-packages/gedit/build.sh
x11-packages/libgtksourceviewmm-3.0/build.sh
x11-packages/gtksourceview3/build.sh
x11-packages/adwaita-icon-theme-legacy/build.sh
x11-packages/glade/build.sh
x11-packages/gtkmm2/build.sh
x11-packages/file-roller/build.sh
x11-packages/libhandy/build.sh
x11-packages/cogl/build.sh
x11-packages/libxml++-2.6/build.sh
x11-packages/libgedit-gtksourceview/build.sh
x11-packages/adwaita-icon-theme/build.sh
x11-packages/gvfs/build.sh
x11-packages/gcr4/build.sh
x11-packages/epiphany/build.sh
packages/graphene/build.sh
packages/json-glib/build.sh
packages/libgedit-gfls/build.sh
packages/gexiv2/build.sh
packages/at-spi2-core/build.sh
packages/libgsf/build.sh
packages/libsigc++-2.0/build.sh
packages/totem-pl-parser/build.sh
packages/libsigc++-3.0/build.sh
packages/gobject-introspection/build.sh
packages/pygobject/build.sh
packages/libgxps/build.sh
packages/libsoup/build.sh
packages/libxml2/build.sh
packages/libglibmm-2.68/build.sh
packages/valac/build.sh
packages/libpangomm-1.4/build.sh
packages/gdk-pixbuf/build.sh
packages/libpangomm-2.48/build.sh
packages/libsoup3/build.sh
packages/glib/build.sh
packages/libsecret/build.sh
packages/libglibmm-2.4/build.sh

I'm not entirely sure if #21803 was caused by Adwaita's specific release process,
or if it could happen for any package from download.gnome.org/sources.

CC: @Biswa96

[TomJo2000]

@twaik do you happen to know if this problem is Adwaita specific, or are tarballs for all projects hosted on download.gnome.org delayed compared to the release tags on the GNOME gitlab?

[twaik]

Idk. It just happens for some packages if auto-updater checks newest available version using repology, it is not adwaita specific.

[TomJo2000]

Which is being used implicitly since the source URL is neither from GitHub nor Gitlab.

[TomJo2000]

Sidenote, does the scripts/updates/api/termux_gitlab_api_get_tag.sh update method only apply to the main GitLab instance or does it also work for project Gitlabs.
E.g gnome.gitlab.com, free desktop.gitlab.com, etc.

[TomJo2000]

I think we can safely assume it's an isolated problem until proven otherwise.