[Helm Chart]: add optional opentelemetry tracing

[jezekra1]

Add opentelemetry collector + optional backend (elastic)

Required for production use, example command for bee-api worker:

      node
      --enable-source-maps
      --experimental-loader=@opentelemetry/instrumentation/hook.mjs
      --import
      ./dist/opentelemetry.js
      ./dist/jobs/worker.js

For bee-api server the command is baked in the Docker image, but it should be optional.