Bump structured logging to 1.23

Author: ehashman

keps/sig-instrumentation/1602-structured-logging/kep.yaml

@@ -23,11 +23,11 @@ prr-approvers:
 see-also:
 replaces:
 stage: beta
-latest-milestone: "v1.22"
+latest-milestone: "v1.23"
 milestone:
   alpha: "v1.19"
-  beta: "v1.22"
-  stable: "v1.23"
+  beta: "v1.23"
+  stable: "v1.26"
 feature-gates:
 disable-supported: true
 metrics: