[Feature Request] Add Support for Service-Specific Service Accounts in Temporal Helm Chart

[seeker815]

Is your feature request related to a problem? Please describe.

If we enable serviceAccount: true helm chart creates one service account for all deploys { temporal-admintools, temporal-frontend, temporal-history, temporal-matching, temporal-web, temporal-worker }

We need a way to enable service account creation and customization for each service and allow the user to set unique serviceAccount names per service.

This is an issue from security point of view and also as we use consul service mesh, it mandates using same name for service account as service name when we use ACL and setting common service account name doesn't work.

Describe the solution you'd like

we would like individual service account to be created for each of the service like so

  temporal-frontend:
    serviceAccount:
      create: true
      name: temporal-frontend
      extraAnnotations:
        
  temporal-history:
    serviceAccount:
      create: true
      name: temporal-history
      extraAnnotations:
        
  matching: