Add telemetry services to rafiki local playground

[mkurapov]

Context

For the first steps of the performance testing story, we want to be able to run the telemetry stack as part of the local playground. This includes Grafana, Prometheus, and the OpenTelemetry collector.
This will enable us to do performance testing in our local environment without blowing up the deployed Prometheus, create dashboards without needing to filter out data from other vendors, and in general, be able to look into metrics and traces on local machines.

Todos

• Add Grafana, Prometheus, and OpenTelemetry collector to the local playground.
• Add additional commands in package.json to start up the local playground with the telemetry stack