info-overview: fix GNOME version

With GNOME 40 we now want to display one fewer component of the version
than before. E.g. we want to show "GNOME 40.0" or "GNOME 40.1" but not
"GNOME 40.0.0" since the third component will only be used for rare
brown paper bag releases, which we did not previously display here.
7 jobs for mcatanzaro/gnome-version in 3 minutes and 6 seconds (queued for 1 second)
latest
Status Name Job ID Coverage
  Build
passed build #1224738

00:02:09

 
  Test
passed test #1224739

00:00:57

 
  Manual
manual asan #1224741
asan allowed to fail manual
manual flatpak #1224740
allowed to fail manual
manual msan #1224744
allowed to fail manual
manual tsan #1224742
allowed to fail manual
manual ubsan #1224743
allowed to fail manual