Drop 26.x version

Author: jcs090218

.github/workflows/test.yml

@@ -19,7 +19,6 @@ jobs:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
         emacs-version:
-          - 26.3
           - 27.2
           - 28.2
           - snapshot

Eask

@@ -12,6 +12,6 @@
 (source "gnu")
 (source "melpa")
 
-(depends-on "emacs" "26.1")
+(depends-on "emacs" "27.1")
 
 (setq network-security-level 'low)  ; see https://github.com/jcs090218/setup-emacs-windows/issues/156#issuecomment-932956432

auto-scroll-bar.el

@@ -6,7 +6,7 @@
 ;; Author: Shen, Jen-Chieh <jcs090218@gmail.com>
 ;; URL: https://github.com/jcs-elpa/auto-scroll-bar
 ;; Version: 0.1.0
-;; Package-Requires: ((emacs "26.1"))
+;; Package-Requires: ((emacs "27.1"))
 ;; Keywords: convenience scrollbar
 
 ;; This file is NOT part of GNU Emacs.