Also switches the CI to using rawhide for now to avoid building gtk4 ourselves
until fedora 39 is released
Signed-off-by: Sandro Bonazzola <sbonazzo@redhat.com>
- Add a meson subproject for building main gtk
- Adapt the docs CI job to install the necessary build deps
- Disable werror in the CI for now, until we port aways from deprecated
APIs
- Switch from using add_global_argument as it would affect subprojects
# Conflicts:
# .gitignore