gitlab-ci: Drop make build system

1 job for shake2 in 59 minutes and 19 seconds (queued for 8 minutes and 16 seconds)
Status Job ID Name Coverage
  Test
failed #350615
x86_64-linux
validate-hadrian

00:59:19

 
Name Stage Failure
failed
validate-hadrian Test
Stderr:
gc/happy/ParseMonad.lhs:34:12: error:
Not in scope: type constructor or class ‘MonadFail’
|
34 | > instance MonadFail P where
| ^^^^^^^^^


ERROR: Job failed: exit code 1