KEP-277: Update release metadata for 1.22 cycle

Author: verb

keps/prod-readiness/sig-node/277.yaml

@@ -1,3 +1,3 @@
 kep-number: 277
-beta:
+alpha:
   approver: "@johnbelamaric"

keps/sig-node/277-ephemeral-containers/kep.yaml

@@ -19,18 +19,18 @@ see-also:
   - "/keps/sig-cli/1441-kubectl-debug"
 
 # The target maturity stage in the current dev cycle for this KEP.
-stage: beta
+stage: alpha
 
 # The most recent milestone for which work toward delivery of this KEP has been
 # done. This can be the current (upcoming) milestone, if it is being actively
 # worked on.
-latest-milestone: "v1.21"
+latest-milestone: "v1.22"
 
 # The milestone at which this feature was, or is targeted to be, at each stage.
 milestone:
   alpha: "v1.16"
-  beta: "v1.21"
-  stable: "v1.23"
+  beta: "v1.23"
+  stable: "v1.25"
 
 # The following PRR answers are required at alpha release
 # List the feature gate name and the components for which it must be enabled