Bump archunit from 0.16.0 to 0.19.0
Bump archunit from 0.16.0 to 0.19.0

Bumps [archunit](https://github.com/TNG/ArchUnit) from 0.16.0 to 0.19.0.
- [Release notes](https://github.com/TNG/ArchUnit/releases)
- [Commits](https://github.com/TNG/ArchUnit/compare/v0.16.0...v0.19.0)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
zalando/tracer,zalando/tracer