Update Gnome runtime

[benmordecai]

Gnome 46 is EoL and we are getting warnings when updating from command line.

[geraveoyomama]

To add onto this, the version on flathub is 0.4.1 but the latest release on github is 0.4.2.

[Sunspark-007]

To add onto this, the version on flathub is 0.4.1 but the latest release on github is 0.4.2.

It's actually 0.4.2 on flathub. The version number was never updated, but the commit does say 0.4.2 and dbus is present.