update date-fns finally

package.json

@@ -11,6 +11,7 @@
     "test": "jest"
   },
   "dependencies": {
+    "@date-fns/tz": "^1.2.0",
     "@mdx-js/loader": "^3.1.0",
     "@mdx-js/react": "^3.1.0",
     "@next-auth/mongodb-adapter": "^1.1.3",
@@ -19,8 +20,7 @@
     "@vercel/analytics": "^1.5.0",
     "autoprefixer": "^10.4.21",
     "classnames": "^2.5.1",
-    "date-fns": "^2.30.0",
-    "date-fns-tz": "^2.0.1",
+    "date-fns": "^4.1.0",
     "googleapis": "^148.0.0",
     "ics": "^3.8.1",
     "mongoose": "^8.13.1",
@@ -50,4 +50,4 @@
       "^.+\\.(ts|tsx)$": "ts-jest"
     }
   }
-}
+}