Change year requirement in file headers

Signed-off-by: Alexandr Demicev <[email protected]>

.golangci.yml

@@ -113,8 +113,11 @@ linters-settings:
         - name: bool-literal-in-expr
         - name: constant-logical-expr
   goheader:
+    values:
+      regexp:
+        copyright_regex: "Copyright © (\\d{4})(?: - (\\d{4}))? SUSE LLC"
     template: |-
-      Copyright © 2023 - {{ year }} SUSE LLC
+      {{copyright_regex}}
   
       Licensed under the Apache License, Version 2.0 (the "License");
       you may not use this file except in compliance with the License.