chore: remove udated dev dependency

Author: 0xtiti

sites/ef/package.json

@@ -42,7 +42,6 @@
     "@docusaurus/types": "3.7.0",
     "@types/react": "19.0.0",
     "@types/react-dom": "19.0.0",
-    "docusaurus": "1.14.7",
     "typescript": "5.6.2"
   },
   "browserslist": {