Drop copyright year requirement

.golangci.yml

@@ -17,7 +17,7 @@ linters-settings:
       const:
         ORGANIZATION: CAcert Inc.
     template: |-
-      Copyright {{ YEAR-RANGE }} {{ ORGANIZATION }}
+      Copyright {{ ORGANIZATION }}
       SPDX-License-Identifier: Apache-2.0
 
       Licensed under the Apache License, Version 2.0 (the "License");