Silverblue: Exclude GNOME Connections
    
    Remove GNOME Connections as it not a core app and is available as
    Flatpak. This was added by mistake via a previous comps-sync as it was
    included in the default Workstation installation.
    
    See:
    - https://pagure.io/fedora-comps/c/29839a7651f41d4ffcec65062e2a500d17dac4fe?branch=main
    - https://pagure.io/workstation-ostree-config/c/5eb3bd821256dd73a937fb64c610d41887e5034c?branch=f35