RHOAI: Build VSCode notebook on RHEL9 base

[atheo89]

This PR incorporates the VSCode notebook to RHOAI.

How has been tested:
The behavior of the notebook looks the same as the one based on C9S in ODH.
The RHEL base image that used is : https://catalog.redhat.com/software/containers/rhel9/python-39/61a6101fbfd4a5234d59629d?architecture=amd64&image=65301f5a53a51a886582fba1

1. On a Local Run

1. Build the notebook: make codeserver-rhel9-python-3.9
2. Run the VSCode locally:
   podman run --network=host --name validation-container quay.io/rh_ee_atheodor/workbench-images:codeserver-rhel9-python-3.9-2023b_20231106

Once you finish the inspection: podman stop validation-container && podman rm validation-container

2. On the Cluster

Deploy on the cluster: make deploy-rhel9-codeserver-rhel9-python-3.9
Run the Test: make validate-codeserver-image image=codeserver-rhel9-python-3.9-2023b_20231106 ensure that the test completed successfully
Undeploy: make undeploy-rhel9-codeserver-rhel9-python-3.9

[openshift-ci]

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[atheo89]

This closed because changed the name of the branch after push the PR!