Added a new util prod deployment.
This adds another manual task to the CI/CD "prod deploy util". This allows to deploy the branch to a nomad installation at: https://nomad-lab.eu/prod/v1/util
This installation uses the full nomad data and can be used for a variety of tests, e.g. benchmark measurement.
The app is scaled very small to just one replica with a single worker. This hopefully makes it easier to test, as all requests should go to the same process on the server. See ops/helm/nomad/deployments/prod-util-values.yaml to change this.