Bump spring-boot-dependencies from 2.2.3.RELEASE to 2.2.4.RELEASE
Bump spring-boot-dependencies from 2.2.3.RELEASE to 2.2.4.RELEASE

Bumps [spring-boot-dependencies](https://github.com/spring-projects/spring-boot) from 2.2.3.RELEASE to 2.2.4.RELEASE.
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](https://github.com/spring-projects/spring-boot/compare/v2.2.3.RELEASE...v2.2.4.RELEASE)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
paulcwarren/spring-content,paulcwarren/spring-content,paulcwarren/spring-content