scripts: exit with 77 if python-libevdev is missing

This way we pass make check/ninja test even where the module is not available

See xorg/proto/xorgproto!31 (comment 879823)

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
9 jobs for wip/skip-python-libevdev in 2 minutes and 10 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Prep
passed container-prep #8925584

00:00:20

 
  Check
passed check formatting #8925586

00:00:09

 
  Build
passed autotools: [] #8925591

00:00:36

passed autotools: [--enable-legacy] #8925593

00:00:51

passed meson: [] #8925588

00:00:10

passed meson: [-Dlegacy=true] #8925589

00:00:12

 
  Test
passed check evdev keysyms #8925598

00:00:35

passed compare meson and autotools #8925597

00:00:48

passed meson from tarball #8925595

00:00:38