Merge pull request kubernetes#2961 from mattcary/latest

KEP-1847:Update latest milestone to 1.23

Author: k8s-ci-robot

keps/sig-apps/1847-autoremove-statefulset-pvcs/kep.yaml

@@ -22,7 +22,7 @@ approvers:
 
 stage: alpha
 
-latest-milestone: "v1.22"
+latest-milestone: "v1.23"
 
 milestone:
   alpha: "v1.23"