Issues wish KubernetesResourceUtil.santizeName in the operator

[shawkins]

Description

The usage of a santizeName is problematic: fabric8io/kubernetes-client#5220

It limits the combined name to 63 characters, when the actual limit is 253. This means a long name on the keycloak resource will cause the suffixes to be dropped completely - however that isn't currently a major issue as none of the resources created by the operator are of the same type.

It's a little more of an issue when there's support for multiple keycloaks in a single namespace - this truncation will make it more likely we'll create a collision.

[shawkins]

Obviated by #20906 - the upstream issue will still need to be worked to properly docuement and likely add more methods.