chore: Update copyright year

jcs090218 · jcs090218 · commit b484d2771f09 · 2026-01-01T14:02:53.000+08:00
diff --git a/show-eol.el b/show-eol.el
@@ -1,6 +1,6 @@
 ;;; show-eol.el --- Show end of line symbol in buffer  -*- lexical-binding: t; -*-
 
-;; Copyright (C) 2019-2025  Shen, Jen-Chieh
+;; Copyright (C) 2019-2026  Shen, Jen-Chieh
 ;; Created date 2019-04-28 22:34:40
 
 ;; Author: Shen, Jen-Chieh <jcs090218@gmail.com>
