scale/golang tip: stop testing kubernetes 1.23 which is way out of support

[BenTheElder]

What happened:

https://prow.k8s.io/?job=*go*tip*

ran yesterday: https://prow.k8s.io/view/gs/kubernetes-ci-logs/logs/ci-golang-tip-k8s-1-23/1884439015151636480
reports components at v1.23 as the job name suggests (I was hoping it was golang 1.23, if it is the version metadata is wrong)

see, e.g. kubeletVersion: v1.23.0-alpha.2.111+b236d2c56660ce in https://storage.googleapis.com/kubernetes-ci-logs/logs/ci-golang-tip-k8s-1-23/1884439015151636480/artifacts/nodes.yaml or the reported revision in metadata.json of v1.23.0-alpha.2.111+b236d2c56660ce

What you expected to happen:
We should be testing a supported release https://kubernetes.io/releases/

How to reproduce it (as minimally and precisely as possible):

check the job

Please provide links to example occurrences, if any:

Anything else we need to know?:

/sig scalability
/kind bug

[BenTheElder]

b236d2c56660ce is not a kubernetes commit or a golang commit according to github ...?