Add CI check for REUSE compliance

3 jobs for master in 2 minutes and 51 seconds (queued for 2 seconds)
Status Name Job ID Coverage
  Build
passed build_clazy_clang_tidy #114614

00:01:29

passed linux kf5-qt5 qt5.15 #114612

00:01:04

73.0%
passed reuse #114613
reuse

00:00:17