fix: 修复 arknights 主题错误的版本 (#121)

Author: viewweiwu

themes.js

@@ -138,7 +138,7 @@ const themes = {
     repo: 'juejin-markdown-theme-arknights',
     highlight: 'atom-one-light',
     path: 'arknights.scss',
-    ref: '83e8179',
+    ref: 'c7285a1',
   },
   vuepress: {
     owner: 'promise96319',