Rename labelNodeRoleExcludeBalancer to labelNodeExcludeBalancers (#97767)
Rename labelNodeRoleExcludeBalancer to labelNodeExcludeBalancers (#97767)

* Rename labelNodeRoleExcludeBalancer to labelNodeExcludeBalancers

* Move labelNodeExcludeBalancers to well_known_labels

* Rename labelNodeExcludeBalancers to LabelNodeExcludeBalancers

* Fix LabelNodeExcludeBalancers reference

* Fix extra space on well_known_labels

* Rename commentary to match with the code name

Kubernetes-commit: c417626c4912161eb9aecafe53e8b081b7105e7b

kubernetes/api