chore: update license header

Signed-off-by: hongming <coder.scala@gmail.com>

pkg/controller/application/apprelease_webhook.go

@@ -1,3 +1,8 @@
+/*
+ * Please refer to the LICENSE file in the root directory of the project.
+ * https://github.com/kubesphere/kubesphere/blob/master/LICENSE
+ */
+
 package application
 
 import (

pkg/controller/resourceprotection/resource_protection_webhook.go

@@ -1,3 +1,8 @@
+/*
+ * Please refer to the LICENSE file in the root directory of the project.
+ * https://github.com/kubesphere/kubesphere/blob/master/LICENSE
+ */
+
 package resourceprotection
 
 import (

pkg/controller/serviceaccounttoken/serviceaccount_token_controller.go

@@ -1,17 +1,6 @@
 /*
-Copyright 2019 The KubeSphere Authors.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
+ * Please refer to the LICENSE file in the root directory of the project.
+ * https://github.com/kubesphere/kubesphere/blob/master/LICENSE
  */
 
 package serviceaccounttoken

pkg/models/kubeconfig/options.go

@@ -1,3 +1,8 @@
+/*
+ * Please refer to the LICENSE file in the root directory of the project.
+ * https://github.com/kubesphere/kubesphere/blob/master/LICENSE
+ */
+
 package kubeconfig
 
 const (