Bump springVersion from 5.0.7.RELEASE to 5.3.0
Bump springVersion from 5.0.7.RELEASE to 5.3.0

Bumps `springVersion` from 5.0.7.RELEASE to 5.3.0.

Updates `spring-core` from 5.0.7.RELEASE to 5.3.0
- [Release notes](https://github.com/spring-projects/spring-framework/releases)
- [Commits](https://github.com/spring-projects/spring-framework/compare/v5.0.7.RELEASE...v5.3.0)

Updates `spring-context` from 5.0.7.RELEASE to 5.3.0
- [Release notes](https://github.com/spring-projects/spring-framework/releases)
- [Commits](https://github.com/spring-projects/spring-framework/compare/v5.0.7.RELEASE...v5.3.0)

Updates `spring-test` from 5.0.7.RELEASE to 5.3.0
- [Release notes](https://github.com/spring-projects/spring-framework/releases)
- [Commits](https://github.com/spring-projects/spring-framework/compare/v5.0.7.RELEASE...v5.3.0)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
sabomichal/akka-java-springfactory