User Story:

As a (user persona), I want to be able to:

• Instances created by karpenter can automatically become Nodes

so that I can achieve

• Reduce operational burden.

Acceptance Criteria:

Description of criteria:

 https://github.com/openshift/hypershift/pull/5349 introduced a new controller to implement auto approval for kubelet client CSRs. We need to extend to also approve serving CSRs since they are not auto approved by the cluster-machine-approver 

Detail about what is specifically not being delivered in the story

Engineering Details:

• (optional) https://github/com/link.to.enhancement/
• (optional) https://issues.redhat.com/link.to.spike
• Engineering detail 1
• Engineering detail 2

This requires/does not require a design proposal.
This requires/does not require a feature gate.