Update golang cookbook

cookbooks/golang/resources/package.rb

@@ -2,6 +2,22 @@
 # Cookbook:: golang
 # Resource:: default
 #
+# Copyright:: 2020-2021, Sous-chefs
+#
+# 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.
+#
+
+unified_mode true
 
 default_action :install