CI: Use DAG pipeline for parallelization
Since jobs can run mostly in parallel, using a DAG pipeline can speed up the pipeline dramatically.
This commit creates separate stages for every linting step for increased
readability and specifieds needs: []
to allow all jobs to be run in
parallel.
Signed-off-by: Adrian 'nex' Schollmeyer adrian.schollmeyer@fem.tu-ilmenau.de