For better performance by default it is better to not pull a `io.micrometer:context-propagation` a hard dependency. * Remove `io.micrometer:context-propagation` dependency management * It is pulled transitively by the `io.micrometer:micrometer-tracing-integration-test` in test scope * Rework all the `ContextSnapshot` usage in the reactive code to respective recommended `handle()` API in `Flux` and `Mono`