Use image pull secrets stored as credentials in user preferences of Che-server in DevWorkspaces

[metlos]

Is your enhancement related to a problem? Please describe

Che-server supports storing docker config json in dockerCredentials user preference. It is then able to create secret with this configuration and mount it as a image pull secret of workspace pods.

Devworkspace operator is able to mount labeled secrets as image pull secrets of the workspace pod.

Describe the solution you'd like

Che server should synchronize the docker config stored in user prefs as a secret in the user's namespace with the correct labels so that it is picked up by DWO.

Describe alternatives you've considered

No response

Additional context

No response

[l0rd]

As mentioned yesterday this issue should not be addressed on che-server side because the credentials are per user and should not be managed by the che-sever. It's something that should be changed at dashboard side and part of #17954