Synced from Eclipse Che issue

https://github.com/eclipse/che/issues/20758

Is your task related to a problem? Please describe

After switching to DevWorkspace engine we might need to drop some fields.
Some fields are deprecated already, other are required to be renamed.

Describe the solution you'd like

Collect all possible changes in CheCluster CR

Additional context

This is how the new configuration sections looks like

> devEnvironments
    > defaultPlugins
    > defaultNamespace
    > storage
    > nodeSelector
    > tolerations
    > trustedCerts
        > gitTrustedCertsConfigMapName
> components
    > devWorkspace
    > dashboard
    > cheServer
        > clusterRoles
        > deployment
        > loglevel
        > debug
        > proxy
        > extraProperties
    > database
    > pluginRegistry
    > devfileRegistry
    > imagePuller
    > metrics
> networking
    > labels
    > annotations
    > domain
    > hostname
    > tlsSecretName
    > auth
> containerRegistry

Release Notes Text

CheCluster custom resource definition has been updated to reflect that changes introduced with the switch to the DevWorkspaces. The result is a shorter and simpler configuration file to maintain for Eclipse Che administrators.