Zipkin 2.25.0

Zipkin 2.25.0 was an infrastructure refactoring release with no significant main code changes from 2.24.4. This is a bridge version for those who extend zipkin with a few notable changes:

• New zipkin-activemq and zipkin-rabbitmq test images. Now, we have a test image for every combination of collector and storage.
• Removal of junit 4.x dependency. zipkin-junit is no longer published in favor of zipkin-junit5.
• Improved practice of AssertJ, JUnit Jupiter and SLF4J thanks to automated refactoring by @TeamModerne and great support by @timtebeek.

Full Changelog: 2.24.4...2.25.0