'devworkspace-che-operator' container is crashing with OOM on the Developer Sandbox clusters

in CRW 2.11 'devworkspace-che-operator' container keeps crashing with OOM, which leads to the CrashLoopBackOff state of the pod

Marking the issue as a blocker for 2.12 since in the next version of CRW 'devworkspace-che-operator' container cease to exist and the logic of DevWorkspace controller is merged in one container of the operator pod.

Related upstream issues:

• https://github.com/eclipse/che/issues/20605
• https://github.com/devfile/devworkspace-operator/issues/611

Basically, we need to disable DWR controller logic if devworkspace enginge is not explicitly enabled in the CR