KEP-3257: update latest and alpha milestone to v1.29

Signed-off-by: Anish Ramasekar <[email protected]>

Author: aramase

keps/sig-auth/3257-cluster-trust-bundles/kep.yaml

@@ -27,11 +27,11 @@ 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: "v1.27"
+latest-milestone: "v1.29"
 
 # The milestone at which this feature was, or is targeted to be, at each stage.
 milestone:
-  alpha: "v1.27"
+  alpha: "v1.29"
   beta: ""
   stable: ""