Push back APF GA to release 1.28

To give time for feedback on borrowing introduced in 1.26.

Signed-off-by: Mike Spreitzer <[email protected]>

Author: MikeSpreitzer

keps/sig-api-machinery/1040-priority-and-fairness/kep.yaml

@@ -33,7 +33,7 @@ latest-milestone: "v1.27"
 milestone:
   alpha: "v1.18"
   beta: "v1.20"
-  stable: "v1.27"
+  stable: "v1.28"
 
 # The following PRR answers are required at alpha release.
 # List the feature gate name and the components for which it must be enabled.