Update package.json - Added moment-duration-format package

package.json

@@ -16,6 +16,7 @@
     "discord.js": "^12.5.3",
     "fs": "^0.0.1-security",
     "moment": "^2.29.1",
+    "moment-duration-format": "^2.3.2",
     "mysql": "^2.18.1"
   }
 }