Kerberos cannot be enabled on Chart deployment

Summary

Trying to enable Kerberos authentication doesn't work - seems like it is disabled by design

Steps to reproduce

Deploy the chart with Kerberos enabled

Configuration used

    omniauth:
      enabled: true
      autoSignInWithProvider:
      syncProfileFromProvider: []
      syncProfileAttributes: ['email']
      allowSingleSignOn: ['kerberos']
      blockAutoCreatedUsers: true
      autoLinkLdapUser: true
      autoLinkSamlUser: false
      autoLinkUser: []
      externalProviders: []
      allowBypassTwoFactor: []
      providers: []
      # - secret: gitlab-google-oauth2
      #   key: provider
    
    kerberos:
      enabled: true

Current behavior

Looking into the created ConfigMap: gitlab-test-webservice shows the following:

 omniauth:
    enabled: true
    sync_profile_from_provider: []
    sync_profile_attributes: ["email"]
    allow_single_sign_on: ["kerberos"]
    block_auto_created_users: true
    auto_link_ldap_user: true
    auto_link_saml_user: false
    external_providers: []
  kerberos:
    enabled: false
  shared:
  gitaly:
    client_path: /home/git/gitaly/bin
    token: "<%= File.read('/etc/gitlab/gitaly/gitaly_token').strip.dump[1..-2] %>"

Diving into the chart itself shows the following under gitlab/charts/gitlab/charts/webservice/templates/configmap.yml:

      mattermost:
        enabled: false
      ## Registry Integration
      {{- include "gitlab.appConfig.registry.configuration" $ | nindent 6 }}
      gitlab_ci:
      {{- include "gitlab.appConfig.ldap.configuration" $ | nindent 6 }}
      {{- include "gitlab.appConfig.omniauth.configuration" $ | nindent 6 }}
      kerberos:
        enabled: false
      shared:
      {{- include "gitlab.appConfig.gitaly" . | nindent 6 }}
      {{- include "gitlab.appConfig.repositories" . | nindent 6 }}
      backup:
        path: "tmp/backups"   # Relative paths are relative to Rails.root (default: tmp/backups/)
      {{- include "gitlab.appConfig.kas" . | nindent 6 }}
      {{- include "gitlab.appConfig.shell" . | nindent 6 }}

Kerberos cannot be enabled on Chart deployment

Summary

Steps to reproduce

Configuration used

Current behavior

Expected behavior

Versions

Relevant logs