gitlab CI: add a job to build with meson from the autotools tarball

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
7 jobs for wip/makefile-add-keysym-generator in 1 minute and 6 seconds
Status Name Job ID Coverage
  Prep
passed container-prep #7547633

00:00:12

 
  Build
passed autotools: [] #7547636

00:00:42

passed autotools: [--enable-legacy] #7547637

00:00:42

passed meson: [] #7547634

00:00:12

passed meson: [-Dlegacy=true] #7547635

00:00:12

 
  Test
passed check evdev keysyms #7547639

00:00:09

passed meson from tarball #7547638

00:00:11