Add a checkstyle job to the CI pipeline
Description
Reintroduces Checkstyle to the continuous integration pipeline. The herokuish buildpack only runs tests, so we had a lot of unexpected failures locally.
Changes
None
Additions
- A checkstyle job in the review stage. It is not allowed to fail. In a separate stage so you have to wait just to annoy @eoudsen
Test and Review
To be filled in by the reviewers
-
There are no unnecessary files present in the MR -
The continuous integration has no problems with the MR -
The MR is filled in as requested (including labels, milestones, and reviewers) -
The documentation is up-to-date
Edited by Tim van der Horst