Don't show error message and proceed to restart when polkit authorization is denied during distro upgrade
Using gnome-software-43.4-1.fc37, if I attempt to perform a system upgrade but then cancel the polkit authorization dialog instead of entering my password, GNOME Software does not gracefully handle the cancellation:
- It displays the error message "Sorry, something went wrong: failed to obtain auth" but there is no need to display an error message in this case because it is expected that users might click the Cancel button
- It opens the GNOME restart dialog anyway, but I clicked Cancel so I would expect this to not happen