Revert "UPSTREAM: <drop>: disable ResilientWatchCacheInitialization feature"

This reverts commit 4772890.

Author: bertinatto

pkg/features/versioned_kube_features.go

@@ -311,7 +311,7 @@ var defaultVersionedKubernetesFeatureGates = map[featuregate.Feature]featuregate
 	},
 
 	genericfeatures.ResilientWatchCacheInitialization: {
-		{Version: version.MustParse("1.31"), Default: false, PreRelease: featuregate.Beta},
+		{Version: version.MustParse("1.31"), Default: true, PreRelease: featuregate.Beta},
 	},
 
 	genericfeatures.RetryGenerateName: {

staging/src/k8s.io/apiserver/pkg/features/kube_features.go

@@ -371,7 +371,7 @@ var defaultVersionedKubernetesFeatureGates = map[featuregate.Feature]featuregate
 	},
 
 	ResilientWatchCacheInitialization: {
-		{Version: version.MustParse("1.31"), Default: false, PreRelease: featuregate.Beta},
+		{Version: version.MustParse("1.31"), Default: true, PreRelease: featuregate.Beta},
 	},
 
 	RetryGenerateName: {

test/featuregates_linter/test_data/versioned_feature_list.yaml

@@ -1066,7 +1066,7 @@
     version: "1.32"
 - name: ResilientWatchCacheInitialization
   versionedSpecs:
-  - default: false
+  - default: true
     lockToDefault: false
     preRelease: Beta
     version: "1.31"