Give the user a warning if their sidekiq exporter and sidekiq health checks port are the same
With &6409 (closed) we added a new setting for Sidekiq health checks. Currently we default the Sidekiq health checks to the Sidekiq exporter value. In 15.0, the user should have set Sidekiq health checks explicitly. We can add a check that checks the configuration of users in Omnibus/helm charts whether they have already updated their configuration to set a separate port for Sidekiq health checks and Sidekiq exporter.
This check would be removed in 15.0 (as then it would crash anyway)
Related to #347509 (closed)