Eliminate dependency on Camel-K CLI in operator mode

[tardieu]

Rayvens currently uses the Camel-K CLI to deploy Camel integrations with the Camel-K operator. Therefore, even in operator mode, the Ray image has to be augmented with the CLI to run Rayvens program. If we were to deploy integrations by directly interfacing with Kubernetes using the kubernetes Python library (or kubectl) already included in the base Ray image, we could eliminate the need for including the Camel-K CLI in the Ray image in operator mode.

[tardieu]

To be clear, we still need the Camel-K operator to be deployed to the Kubernetes cluster but this is typically done beforehand, independently from deploying and configuring the Ray cluster itself.