
WebKitGTK 6.0 moved allow_tls_certificate_for_host() from WebContext to
NetworkSession. This was not adjusted here when the portal helper was
switched from 4.0 to 6.0.
2d1b53b211
Closes: https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/7597
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/3284>