Add configMapRef to charts that use clusterID

[spencerr]

All charts have a apiKeySecretRef variable to allow for passing in an existing secret which works great in a gitops deployment, however it would also be great to standardize all charts with configMapRef as well which contains the clusterID as that configmap could be established with terraform first, and not require storing the clusterID in the gitops repository.

- Needs configMapRef addition
+ Already has it
Does not use clusterID

castai-agent
- castai-ai-optimizer-proxy
castai-audit-logs-receiver
- castai-cloud-proxy
- castai-cluster-controller
castai-db-optimizer
castai-evictor
castai-hibernate
+ castai-pod-mutator
- castai-pod-node-lifecycle
- castai-pod-pinner
+ castai-scheduling-policies-controller
- castai-spot-handler
- egressd
- gpu-metrics-exporter