Deprecate datajobs.vdk.image AND datajobs.deployment.dataJobBaseImage Properties

[doks5]

What is the feature request? What problem does it solve?
With the introduction of support for multiple python versions, the datajobs.vdk.image and datajobs.deployment.dataJobBaseImage application properties would no longer be used, and are to be replaced by the datajobs.deployment.supportedPythonVersions and datajobs.deployment.defaultPythonVersion configurations.

Suggested solution
After the implementation of the new logic and configuration to support multiple python versions is complete, remove the datajobs.vdk.image and datajobs.deployment.dataJobBaseImage properties from the properties scripts, the helm chart and the TODOs mentioned in the source code of the Control Service.

Additional context
TBC