changed 1.35 to alpha for DRA extended resource feature

Author: yliaog

keps/sig-scheduling/5004-dra-extended-resource/kep.yaml

@@ -31,8 +31,9 @@ latest-milestone: "v1.35"
 # The milestone at which this feature was, or is targeted to be, at each stage.
 milestone:
   alpha: "v1.34"
-  beta: "v1.35"
-  stable: "v1.36"
+  alpha: "v1.35"
+  beta: "v1.36"
+  stable: "v1.37"
 
 # The following PRR answers are required at alpha release
 # List the feature gate name and the components for which it must be enabled