dynamic resource allocation: bump latest-milestone to 1.26

1.25 is no longer the latest, that's 1.26 now.

Author: pohly

keps/sig-node/3063-dynamic-resource-allocation/kep.yaml

@@ -24,7 +24,7 @@ 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: "v1.25"
+latest-milestone: "v1.26"
 
 # The milestone at which this feature was, or is targeted to be, at each stage.
 milestone: