update license headers

Author: greenbonebot

pkg/query/filter/cmp.go

@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2025 Greenbone AG
+//
+// SPDX-License-Identifier: AGPL-3.0-or-later
+
 package filter
 
 import (

pkg/query/filter/request_test.go

@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2025 Greenbone AG
+//
+// SPDX-License-Identifier: AGPL-3.0-or-later
+
 package filter_test
 
 import (

pkg/query/filter/type_test.go

@@ -1,3 +1,7 @@
+// SPDX-FileCopyrightText: 2025 Greenbone AG
+//
+// SPDX-License-Identifier: AGPL-3.0-or-later
+
 package filter_test
 
 import (