add license statement

Signed-off-by: John LaGrone <[email protected]>

Author: jrlagrone

coldfront/core/publication/utils.py

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: (C) ColdFront Authors
+#
+# SPDX-License-Identifier: AGPL-3.0-or-later
+
 import requests