Add copy right to spec file

cockpit-packages.spec

@@ -1,3 +1,20 @@
+#
+# spec file for package cockpit-packages
+#
+# Copyright (c) 2025 SUSE LLC
+#
+# All modifications and additions to the file contributed by third parties
+# remain the property of their copyright owners, unless otherwise agreed
+# upon. The license for this file, and modifications and additions to the
+# file, is the same license as for the pristine package itself (unless the
+# license for the pristine package is not an Open Source License, in which
+# case the license is the MIT License). An "Open Source License" is a
+# license that conforms to the Open Source Definition (Version 1.9)
+# published by the Open Source Initiative.
+
+# Please submit bugfixes or comments via https://bugs.opensuse.org/
+#
+
 Name: cockpit-packages
 Version: 1
 Release: 0%{?dist}