HOTFIX: Change header back to http instead of https to path license header test (#6347)

Reviewers: Jason Gustafson <jason@confluent.io>

release.py

@@ -8,7 +8,7 @@
 # (the "License"); you may not use this file except in compliance with
 # the License.  You may obtain a copy of the License at
 #
-#    https://www.apache.org/licenses/LICENSE-2.0
+#    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,