fix: correct the feature gate name of KEP-3288

The feature gate has been renamed to PodLogsQuerySplitStreams

Signed-off-by: Jian Zeng <[email protected]>

Author: knight42

keps/sig-node/3288-separate-stdout-from-stderr/kep.yaml

@@ -29,7 +29,7 @@ milestone:
 # The following PRR answers are required at alpha release
 # List the feature gate name and the components for which it must be enabled
 feature-gates:
-  - name: "SplitStdoutAndStderr"
+  - name: "PodLogsQuerySplitStreams"
     components:
       - kubelet
       - kube-apiserver