[secure] Use secure license site

Author: hazendaz

LICENSE_HEADER

@@ -4,7 +4,7 @@
    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
+      https://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,