This is a Bug Report

Problem:
Prompted by https://github.com/kubernetes/enhancements/pull/3913/files#r1142389497, I'm suggesting we might
need to document the label kubernetes.io/cluster-trust-bundle-version

Proposed Solution:

1. Check if this label is used in any shipped Kubernetes code. If it is, even behind a feature gate, we must document it.
2. If so, get it registered and documented.

Page to Update:
https://kubernetes.io/docs/reference/labels-annotations-taints/

Additional Information:
/language en