KEP-127: Update feature flag name

We changed the feature flag name in 1.28, when we added support for
stateful pods too.

Signed-off-by: Rodrigo Campos <[email protected]>

Author: rata

keps/sig-node/127-user-namespaces/kep.yaml

@@ -21,7 +21,7 @@ milestone:
   alpha: "v1.25"
 
 feature-gates:
-  - name: UserNamespacesStatelessPodsSupport
+  - name: UserNamespacesSupport
     components:
       - kubelet
       - kube-apiserver