Add k8s-cloud-builder and k8s-ci-builder for Go 1.23rc2 #3690
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What type of PR is this?
/kind feature
What this PR does / why we need it:
This PR updates k8s-cloud-builder and k8s-ci-builder images to Go 1.23rc2.
I didn't remove k8s-cloud-builder for Kubernetes 1.31 based on Go 1.22 until we don't make a decision if we're releasing Kubernetes 1.31.0 with Go 1.23 (see kubernetes/kubernetes#126299). I left TODOs to remove these variants once the decision is made.
Which issue(s) this PR fixes:
xref #3650
Does this PR introduce a user-facing change?
/assign @saschagrunert @puerco @Verolop
cc @kubernetes/release-engineering