ci: run re-use lint every build

2 jobs for master in 21 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  .Pre
failed #44566
reuse

00:00:21

 
  Build
skipped #44567
flatpak
flatpak
 
Name Stage Failure
failed
reuse .Pre
             {addheader,download,init,lint,spdx} ...
reuse: error: invalid choice: 'sh' (choose from 'addheader', 'download', 'init', 'lint', 'spdx')
Running after_script
usage: reuse [-h] [--debug] [--include-submodules] [--no-multiprocessing]
[--root PATH] [--version]
{addheader,download,init,lint,spdx} ...
reuse: error: invalid choice: 'sh' (choose from 'addheader', 'download', 'init', 'lint', 'spdx')
Uploading artifacts for failed job
ERROR: Job failed: exit code 2