build: 更新依赖包版本

Author: JCAlways

package.json

@@ -20,7 +20,7 @@
     "hexo-generator-archive": "^2.0.0",
     "hexo-generator-category": "^2.0.0",
     "hexo-generator-cname": "^0.3.0",
-    "hexo-generator-feed": "^3.0.0",
+    "hexo-generator-feed": "^4.0.0",
     "hexo-generator-index": "^4.0.0",
     "hexo-generator-sitemap": "^3.0.1",
     "hexo-generator-tag": "^2.0.0",
@@ -30,7 +30,7 @@
     "hexo-renderer-pug": "^3.0.0",
     "hexo-renderer-stylus": "^3.0.1",
     "hexo-server": "^3.0.0",
-    "hexo-theme-butterfly": "^5.5.3",
+    "hexo-theme-butterfly": "^5.5.4",
     "hexo-theme-landscape": "^1.1.0",
     "hexo-wordcount": "^6.0.1"
   }