Zipkin GCP 1.1.0

Zipkin GCP 1.1.0 updates all versions to latest and renovates the build so that it can work on JDK21. It also begins a pubsub collector, thanks to @gkatzioura. There is still some integration work needed, so please help in #109 or add notice of your interest there to encourage others.

Part of updating was moving to junit-jupiter instead of junit 4. Jupiter was assisted by OpenRewrite automated refactoring by @TeamModerne.

Thanks finally, to those who helped with maintenance in the last 2 years including @Chipcius and @shakuzen

Full Changelog: https://github.com/openzipkin/zipkin-gcp/compare/1.0.4..1.1.0