Merge pull request kubernetes#2664 from zshihang/master

CSIServiceAccountToken going GA

Author: k8s-ci-robot

keps/prod-readiness/sig-storage/1855.yaml

@@ -1,3 +1,5 @@
 kep-number: 1855
 beta:
   approver: "@deads2k"
+stable:
+  approver: "@deads2k"

keps/sig-storage/1855-csi-driver-service-account-token/README.md

@@ -324,3 +324,7 @@ Option 1 is adopted. See discussion
     the same functionality.
 
 ## Implementation History
+
+- ALPHA: 1.20
+- BETA: 1.21
+- STABLE: 1.22

keps/sig-storage/1855-csi-driver-service-account-token/kep.yaml

@@ -15,13 +15,14 @@ approvers:
   - "@msau42"
   - "@mikedanese"
 creation-date: 2020-06-09
-last-updated: 2021-02-04
+last-updated: 2021-04-29
 status: implementable
-stage: beta
-latest-milestone: "v1.21"
+stage: stable
+latest-milestone: "v1.22"
 milestone:
   alpha: "v1.20"
   beta: "v1.21"
+  stable: "v1.22"
 feature-gates:
   - name: CSIServiceAccountToken
     components: