Add kube_deployment_owner

[Syndlex]

What would you like to be added:

There are more and more Operators in the ecosystem. Some of them just start Deployments and it would be nice to get the owner of those deployments

Why is this needed:

Add kube_deployment_owner like the kube_pod_owner

Describe the solution you'd like

Additional context

[k8s-ci-robot]

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[richabanker]

Is owner a bounded label? What are the cardinality implications of this label?

[Syndlex]

Hey,

What is a bounded label? Haven't heard that term and Google isn't helping.

I would say the owner ist the object referenced in the owner reference of the deployment.
Like the owner of a pod can be a deployment.

[richabanker]

/cc