[validations] chore: add copyright header to filter file

hgoelredhat · hgoelredhat · commit a6708f3d01e5 · 2026-06-18T16:14:16.000+05:30
Signed-off-by: Harshita Goel &lt;hgoel@redhat.com&gt;
diff --git a/roles/validations/filter_plugins/cifmw_validations_xml_filter.py b/roles/validations/filter_plugins/cifmw_validations_xml_filter.py
@@ -1,4 +1,7 @@
 #!/usr/bin/python3
+# Copyright (c) 2026 Red Hat, Inc.
+# SPDX-License-Identifier: Apache-2.0
+
 
 __metaclass__ = type
 
