sig-cl: update KEP for master label/taint for 1.26

Author: neolit123

keps/sig-cluster-lifecycle/kubeadm/2067-rename-master-label-taint/README.md

@@ -298,6 +298,7 @@ Not applicable.
 - 2020-11-09 - added link to "master-control-plane.md" ADR
 - 2022-01-10 - KEP marked as implementable for 1.24 (stage 2)
 - 2022-05-17 - KEP marked as implementable for 1.25 (stage 3)
+- 2022-08-25 - KEP marked as implementable for 1.26 (stage 4)
 
 ## Drawbacks
 

keps/sig-cluster-lifecycle/kubeadm/2067-rename-master-label-taint/kep.yaml

@@ -7,7 +7,7 @@ participating-sigs:
   - sig-cluster-lifecycle
 status: implementable
 creation-date: 2020-10-03
-last-updated: 2022-05-17
+last-updated: 2022-08-25
 reviewers:
   - "@fabriziopandini"
 approvers: