Bump hibernate-validator in /services-parent
Bump hibernate-validator in /services-parent

Bumps [hibernate-validator](https://github.com/hibernate/hibernate-validator) from 5.2.4.Final to 5.3.6.Final.
- [Release notes](https://github.com/hibernate/hibernate-validator/releases)
- [Changelog](https://github.com/hibernate/hibernate-validator/blob/5.3.6.Final/changelog.txt)
- [Commits](https://github.com/hibernate/hibernate-validator/compare/5.2.4.Final...5.3.6.Final)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
vgoldin/cqrs-eventsourcing-kafka