Description of problem:

When we try to installDespace into openshift-operators namespace and change disableContainerBuildCapabilities: false workspaces start with failures 

Prerequisites (if any, like setup, operators/versions):

Steps to Reproduce

1. Get an empty cluster and set up a  DS 3.4.0 with the Operator using UI. We can set up the operator click on the default values
2. After setting up the operator create Che server instance thing UI in the current  ** openshift-operators namespace
3. Waiting for installation. Got to the Che-Server and change
4.  disableContainerBuildCapabilities: -> false 
5. Got to the DevSpaces Dashboard and create for instance Empty workspace

Actual results:

The workspace fails with problem like  Error provisioning rbac: roles.rbac.authorization.k8s.io "devworkspace-use-container-build" is forbidden: user "system:serviceaccount:openshift-operators:devworkspace-controller-serviceaccount" (groups=["system:serviceaccounts" "system:serviceaccounts:openshift-operators" "system:authenticated"]) is attempting to grant RBAC permissions not currently held: {APIGroups:["security.openshift.io"], Resources:["securitycontextconstraints"], ResourceNames:["container-build"], Verbs:["use"]}

Expected results:

The workspace should start with enabled build capabilities mode

Reproducibility (Always/Intermittent/Only Once):

Always

Build Details:

 ** DS 3.4.0.RC-02-03 + DWO.18.0.1

Additional info (Such as Logs, Screenshots, etc):