Bump org.assertj:assertj-core from 3.2.0 to 3.9.0
Bump org.assertj:assertj-core from 3.2.0 to 3.9.0

Bumps [org.assertj:assertj-core](https://github.com/joel-costigliola/assertj-core) from 3.2.0 to 3.9.0.
- [Commits](https://github.com/joel-costigliola/assertj-core/compare/assertj-core-3.2.0...assertj-core-3.9.0)
rtatol/spring-data-eclipselink