youdaonote: Remove protocol from verified stanza

- According to Homebrew/brew#14717 it's wrong
  to have the protocol in the "verified" part of a Cask URL. So there's
  now an autocorrecting RuboCop for it at
  Homebrew/brew#14886. This fixes the singular
  offense.

Casks/youdaonote.rb

@@ -4,7 +4,7 @@
 
   url "https://artifact.lx.netease.com/download/ynote-electron/%E6%9C%89%E9%81%93%E4%BA%91%E7%AC%94%E8%AE%B0-#{version}.zip",
       user_agent: :fake,
-      verified:   "https://artifact.lx.netease.com/download/ynote-electron/"
+      verified:   "artifact.lx.netease.com/download/ynote-electron/"
   name "youdaonote"
   name "有道云笔记"
   desc "Multi-platform note application"