Switch to JUnit 5, Spring Boot and Spring Kafka Version Upgrades

Summary

This release comprises of a switch from JUnit 4 to JUnit 5 as well as major leap ahead to the 2.5.2 version of Spring Boot. Also, this release uses the Spring-managed version of Spring Kafka (2.7.3) as opposed to the previously explicitly specified one.

Thanks to @abalzan for this contribution.

What's Changed

• junit 5 update by @abalzan in #7

New Contributors

• @abalzan made their first contribution in #7

Full Changelog: 1.0.3-RELEASE...1.0.4-RELEASE