bug: workspace-api helm chart contains hard coded namespace in clusterrolebinding, also remove unnecessary env variables

[achtsnits]

old workspace-api helm chart contains hardcoded "rm" namespace in clusterrolebinding

there are also many now obsolete env-variables which can be removed

[achtsnits]

helm chart got fixed, also the with v2 unnecessary env variables got removed

-> see https://github.com/EOEPCA/helm-charts-dev/tree/develop/charts/rm-workspace-api

  rm-workspace-api:
  - apiVersion: v2
    appVersion: 2.0.0
    created: "2024-11-27T10:32:24.26579167Z"
    description: A Helm chart for Kubernetes
    digest: 6975554eb9d29bd630d648d9b151aabb033ebb8ad3b2fe8b6a811feb5da5950d
    name: rm-workspace-api
    type: application
    urls:
    - https://github.com/EOEPCA/helm-charts-dev/releases/download/rm-workspace-api-2.0.0/rm-workspace-api-2.0.0.tgz
    version: 2.0.0

[achtsnits]

to align with @rconway the process in regard to helm-charts-dev vs helm-charts -> see see https://eoepca.slack.com/archives/C07KHPXA1AP/p1732705870820059